Hi,
 
I cannot see the graph plugin even though it is listed as loaded when I display the SQuirreL SQL Client Plugin Summary. I'm running JDK 1.6 on Window XP Professional SP3. There are no entries in the log file to indicate that the plugin falis to load.
There are these entries in the log:
 
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2010-02-01 16:12:06,437 [main] INFO  net.sourceforge.squirrel_sql.client.SquirrelLoggerFactory  - #############################################################################################################
2010-02-01 16:12:06,437 [main] INFO  net.sourceforge.squirrel_sql.client.SquirrelLoggerFactory  - # Starting SQuirreL SQL Client Version 3.0.3 at 01/02/10 16:12
2010-02-01 16:12:06,437 [main] INFO  net.sourceforge.squirrel_sql.client.SquirrelLoggerFactory  - #############################################################################################################
2010-02-01 16:12:06,437 [main] INFO  net.sourceforge.squirrel_sql.client.SquirrelLoggerFactory  - SQuirreL SQL Client Version 3.0.3 started: Mon Feb 01 16:12:06 GMT 2010
2010-02-01 16:12:06,437 [main] INFO  net.sourceforge.squirrel_sql.client.SquirrelLoggerFactory  - Copyright (c) 2001-2009
Colin Bell, Gerd Wagner, Rob Manning and others
2010-02-01 16:12:06,437 [main] INFO  net.sourceforge.squirrel_sql.client.SquirrelLoggerFactory  - java.vendor: Sun Microsystems Inc.
2010-02-01 16:12:06,437 [main] INFO  net.sourceforge.squirrel_sql.client.SquirrelLoggerFactory  - java.version: 1.6.0_18
2010-02-01 16:12:06,437 [main] INFO  net.sourceforge.squirrel_sql.client.SquirrelLoggerFactory  - java.runtime.name: Java(TM) SE Runtime Environment
2010-02-01 16:12:06,437 [main] INFO  net.sourceforge.squirrel_sql.client.SquirrelLoggerFactory  - os.name: Windows XP
2010-02-01 16:12:06,437 [main] INFO  net.sourceforge.squirrel_sql.client.SquirrelLoggerFactory  - os.version: 5.1
2010-02-01 16:12:06,437 [main] INFO  net.sourceforge.squirrel_sql.client.SquirrelLoggerFactory  - os.arch: x86
2010-02-01 16:12:06,437 [main] INFO  net.sourceforge.squirrel_sql.client.SquirrelLoggerFactory  - user.dir: C:\Program Files\SQuirreL SQL Client
2010-02-01 16:12:06,437 [main] INFO  net.sourceforge.squirrel_sql.client.SquirrelLoggerFactory  - user.home: C:\Documents and Settings\Steve Brown
2010-02-01 16:12:06,437 [main] INFO  net.sourceforge.squirrel_sql.client.SquirrelLoggerFactory  - java.home: C:\Program Files\Java\jre6
2010-02-01 16:12:06,437 [main] INFO  net.sourceforge.squirrel_sql.client.SquirrelLoggerFactory  - java.class.path: C:\Program Files\SQuirreL SQL Client\squirrel-sql.jar;C:\Program Files\SQuirreL SQL Client\lib\activation-1.0.2.jar;C:\Program Files\SQuirreL SQL Client\lib\antlr.jar;C:\Program Files\SQuirreL SQL Client\lib\asm-attrs.jar;C:\Program Files\SQuirreL SQL Client\lib\asm.jar;C:\Program Files\SQuirreL SQL Client\lib\cglib.jar;C:\Program Files\SQuirreL SQL Client\lib\commons-cli.jar;C:\Program Files\SQuirreL SQL Client\lib\commons-codec.jar;C:\Program Files\SQuirreL SQL Client\lib\commons-collections.jar;C:\Program Files\SQuirreL SQL Client\lib\commons-httpclient.jar;C:\Program Files\SQuirreL SQL Client\lib\commons-logging.jar;C:\Program Files\SQuirreL SQL Client\lib\dom4j.jar;C:\Program Files\SQuirreL SQL Client\lib\ejb3-persistence.jar;C:\Program Files\SQuirreL SQL Client\lib\forms.jar;C:\Program Files\SQuirreL SQL Client\lib\fw.jar;C:\Program Files\SQuirreL SQL Client\lib\hibernate-annotations.jar;C:\Program Files\SQuirreL SQL Client\lib\hibernate-commons-annotations.jar;C:\Program Files\SQuirreL SQL Client\lib\hibernate-entitymanager.jar;C:\Program Files\SQuirreL SQL Client\lib\hibernate.jar;C:\Program Files\SQuirreL SQL Client\lib\j2ee-1.4.jar;C:\Program Files\SQuirreL SQL Client\lib\jmxri-1.2.jar;C:\Program Files\SQuirreL SQL Client\lib\jxl.jar;C:\Program Files\SQuirreL SQL Client\lib\log4j.jar;C:\Program Files\SQuirreL SQL Client\lib\nanoxml.jar;C:\Program Files\SQuirreL SQL Client\lib\openide-loaders.jar;C:\Program Files\SQuirreL SQL Client\lib\openide.jar;C:\Program Files\SQuirreL SQL Client\lib\org-netbeans-modules-editor-fold.jar;C:\Program Files\SQuirreL SQL Client\lib\org-netbeans-modules-editor-lib.jar;C:\Program Files\SQuirreL SQL Client\lib\org-netbeans-modules-editor-util.jar;C:\Program Files\SQuirreL SQL Client\lib\org-netbeans-modules-editor.jar;C:\Program Files\SQuirreL SQL Client\lib\spring-beans.jar;C:\Program Files\SQuirreL SQL Client\lib\spring-context-support.jar;C:\Program Files\SQuirreL SQL Client\lib\spring-context.jar;C:\Program Files\SQuirreL SQL Client\lib\spring-core.jar;C:\Program Files\SQuirreL SQL Client\lib\stringtemplate.jar;C:\Program Files\SQuirreL SQL Client\lib\syntax.jar;C:\Program Files\SQuirreL SQL Client\lib\versioncheck.jar;C:\java\apache-ivy-2.0.0-rc2\ivy-2.0.0-rc2.jar
2010-02-01 16:12:07,265 [main] INFO  net.sourceforge.squirrel_sql.client.plugin.PluginManager  - Failed to load org.rege.isqlj.squirrel.SqscConnection in C:\Program Files\SQuirreL SQL Client\plugins\isqlj.jar to check if it is assignable to net.sourceforge.squirrel_sql.client.plugin.IPlugin. Reason: java.lang.NoClassDefFoundError: org/rege/isqlj/SqlConnection
2010-02-01 16:12:09,046 [main] INFO  net.sourceforge.squirrel_sql.client.Application  - Plugin informix created in 0 ms, loaded in 0 ms, initialized in 0 ms, total 0 ms.
2010-02-01 16:12:09,046 [main] INFO  net.sourceforge.squirrel_sql.client.Application  - Plugin dataimport created in 0 ms, loaded in 0 ms, initialized in 0 ms, total 0 ms.
2010-02-01 16:12:09,046 [main] INFO  net.sourceforge.squirrel_sql.client.Application  - Plugin firebird created in 0 ms, loaded in 0 ms, initialized in 0 ms, total 0 ms.
2010-02-01 16:12:09,062 [main] INFO  net.sourceforge.squirrel_sql.client.Application  - Plugin oracle created in 0 ms, loaded in 0 ms, initialized in 15 ms, total 15 ms.
2010-02-01 16:12:09,062 [main] INFO  net.sourceforge.squirrel_sql.client.Application  - Plugin sessionscript created in 0 ms, loaded in 0 ms, initialized in 0 ms, total 0 ms.
2010-02-01 16:12:09,062 [main] INFO  net.sourceforge.squirrel_sql.client.Application  - Plugin sqlbookmark created in 0 ms, loaded in 0 ms, initialized in 0 ms, total 0 ms.
2010-02-01 16:12:09,062 [main] INFO  net.sourceforge.squirrel_sql.client.Application  - Plugin sqlreplace created in 0 ms, loaded in 0 ms, initialized in 0 ms, total 0 ms.
2010-02-01 16:12:09,062 [main] INFO  net.sourceforge.squirrel_sql.client.Application  - Plugin laf created in 16 ms, loaded in 296 ms, initialized in 0 ms, total 312 ms.
2010-02-01 16:12:09,062 [main] INFO  net.sourceforge.squirrel_sql.client.Application  - Plugin graph created in 0 ms, loaded in 0 ms, initialized in 0 ms, total 0 ms.
2010-02-01 16:12:09,062 [main] INFO  net.sourceforge.squirrel_sql.client.Application  - Plugin favs created in 0 ms, loaded in 0 ms, initialized in 16 ms, total 16 ms.
2010-02-01 16:12:09,062 [main] INFO  net.sourceforge.squirrel_sql.client.Application  - Plugin dbdiff created in 0 ms, loaded in 0 ms, initialized in 0 ms, total 0 ms.
2010-02-01 16:12:09,062 [main] INFO  net.sourceforge.squirrel_sql.client.Application  - Plugin sqlscript created in 0 ms, loaded in 0 ms, initialized in 0 ms, total 0 ms.
2010-02-01 16:12:09,062 [main] INFO  net.sourceforge.squirrel_sql.client.Application  - Plugin firebirdmanager created in 0 ms, loaded in 0 ms, initialized in 0 ms, total 0 ms.
2010-02-01 16:12:09,062 [main] INFO  net.sourceforge.squirrel_sql.client.Application  - Plugin db2 created in 0 ms, loaded in 0 ms, initialized in 0 ms, total 0 ms.
2010-02-01 16:12:09,062 [main] INFO  net.sourceforge.squirrel_sql.client.Application  - Plugin h2 created in 0 ms, loaded in 0 ms, initialized in 0 ms, total 0 ms.
2010-02-01 16:12:09,062 [main] INFO  net.sourceforge.squirrel_sql.client.Application  - Plugin derby created in 0 ms, loaded in 0 ms, initialized in 0 ms, total 0 ms.
2010-02-01 16:12:09,062 [main] INFO  net.sourceforge.squirrel_sql.client.Application  - Plugin hibernate created in 0 ms, loaded in 0 ms, initialized in 0 ms, total 0 ms.
2010-02-01 16:12:09,062 [main] INFO  net.sourceforge.squirrel_sql.client.Application  - Plugin sybase created in 0 ms, loaded in 0 ms, initialized in 0 ms, total 0 ms.
2010-02-01 16:12:09,062 [main] INFO  net.sourceforge.squirrel_sql.client.Application  - Plugin sqsc-isqlj created in 0 ms, loaded in 0 ms, initialized in 16 ms, total 16 ms.
2010-02-01 16:12:09,062 [main] INFO  net.sourceforge.squirrel_sql.client.Application  - Plugin sqlparam created in 0 ms, loaded in 0 ms, initialized in 0 ms, total 0 ms.
2010-02-01 16:12:09,062 [main] INFO  net.sourceforge.squirrel_sql.client.Application  - Plugin sqlval created in 0 ms, loaded in 0 ms, initialized in 0 ms, total 0 ms.
2010-02-01 16:12:09,062 [main] INFO  net.sourceforge.squirrel_sql.client.Application  - Plugin postgres created in 0 ms, loaded in 0 ms, initialized in 0 ms, total 0 ms.
2010-02-01 16:12:09,062 [main] INFO  net.sourceforge.squirrel_sql.client.Application  - Plugin editextras created in 0 ms, loaded in 0 ms, initialized in 15 ms, total 15 ms.
2010-02-01 16:12:09,062 [main] INFO  net.sourceforge.squirrel_sql.client.Application  - Plugin smarttools created in 16 ms, loaded in 0 ms, initialized in 0 ms, total 16 ms.
2010-02-01 16:12:09,062 [main] INFO  net.sourceforge.squirrel_sql.client.Application  - Plugin syntax created in 0 ms, loaded in 0 ms, initialized in 16 ms, total 16 ms.
2010-02-01 16:12:09,062 [main] INFO  net.sourceforge.squirrel_sql.client.Application  - Plugin mssql created in 0 ms, loaded in 0 ms, initialized in 0 ms, total 0 ms.
2010-02-01 16:12:09,062 [main] INFO  net.sourceforge.squirrel_sql.client.Application  - Plugin userscript created in 0 ms, loaded in 0 ms, initialized in 0 ms, total 0 ms.
2010-02-01 16:12:09,062 [main] INFO  net.sourceforge.squirrel_sql.client.Application  - Plugin codecompletion created in 0 ms, loaded in 0 ms, initialized in 0 ms, total 0 ms.
2010-02-01 16:12:09,062 [main] INFO  net.sourceforge.squirrel_sql.client.Application  - Plugin i18n created in 0 ms, loaded in 0 ms, initialized in 0 ms, total 0 ms.
2010-02-01 16:12:09,062 [main] INFO  net.sourceforge.squirrel_sql.client.Application  - Plugin dbcopy created in 0 ms, loaded in 0 ms, initialized in 15 ms, total 15 ms.
2010-02-01 16:12:09,062 [main] INFO  net.sourceforge.squirrel_sql.client.Application  - Plugin refactoring created in 0 ms, loaded in 0 ms, initialized in 0 ms, total 0 ms.
2010-02-01 16:12:09,062 [main] INFO  net.sourceforge.squirrel_sql.client.Application  - Plugin mysql created in 0 ms, loaded in 0 ms, initialized in 0 ms, total 0 ms.
2010-02-01 16:12:15,265 [Thread-4] INFO  org.hibernate.dialect.Dialect  - Using dialect: net.sourceforge.squirrel_sql.fw.dialects.AxionDialectExt$AxionDialectHelper
2010-02-01 16:12:15,296 [Thread-4] INFO  org.hibernate.dialect.Dialect  - Using dialect: net.sourceforge.squirrel_sql.fw.dialects.DB2DialectExt$DB2DialectHelper
2010-02-01 16:12:15,296 [Thread-4] INFO  org.hibernate.dialect.Dialect  - Using dialect: net.sourceforge.squirrel_sql.fw.dialects.DaffodilDialectExt$DaffodilDialectHelper
2010-02-01 16:12:15,296 [Thread-4] INFO  org.hibernate.dialect.Dialect  - Using dialect: net.sourceforge.squirrel_sql.fw.dialects.DB2DialectExt$DB2DialectHelper
2010-02-01 16:12:15,296 [Thread-4] INFO  org.hibernate.dialect.Dialect  - Using dialect: net.sourceforge.squirrel_sql.fw.dialects.DerbyDialectExt$DerbyDialectHelper
2010-02-01 16:12:15,406 [Thread-4] INFO  org.hibernate.dialect.Dialect  - Using dialect: net.sourceforge.squirrel_sql.fw.dialects.FirebirdDialectExt$FirebirdDialectHelper
2010-02-01 16:12:15,406 [Thread-4] INFO  org.hibernate.dialect.Dialect  - Using dialect: net.sourceforge.squirrel_sql.fw.dialects.FrontBaseDialectExt$FrontBaseDialectHelper
2010-02-01 16:12:15,406 [Thread-4] INFO  org.hibernate.dialect.Dialect  - Using dialect: net.sourceforge.squirrel_sql.fw.dialects.GenericDialectExt$GenericDialectHelper
2010-02-01 16:12:15,406 [Thread-4] INFO  org.hibernate.dialect.Dialect  - Using dialect: net.sourceforge.squirrel_sql.fw.dialects.HADBDialectExt$HADBDialectHelper
2010-02-01 16:12:15,406 [Thread-4] INFO  org.hibernate.dialect.Dialect  - Using dialect: net.sourceforge.squirrel_sql.fw.dialects.H2DialectExt$H2DialectHelper
2010-02-01 16:12:15,406 [Thread-4] INFO  org.hibernate.dialect.Dialect  - Using dialect: net.sourceforge.squirrel_sql.fw.dialects.HSQLDialectExt$HSQLDialectHelper
2010-02-01 16:12:15,421 [Thread-4] INFO  org.hibernate.dialect.Dialect  - Using dialect: net.sourceforge.squirrel_sql.fw.dialects.InformixDialectExt$InformixDialectHelper
2010-02-01 16:12:15,421 [Thread-4] INFO  org.hibernate.dialect.Dialect  - Using dialect: net.sourceforge.squirrel_sql.fw.dialects.InterbaseDialectExt$InterbaseDialectHelper
2010-02-01 16:12:15,421 [Thread-4] INFO  org.hibernate.dialect.Dialect  - Using dialect: net.sourceforge.squirrel_sql.fw.dialects.IngresDialectExt$IngresDialectHelper
2010-02-01 16:12:15,421 [Thread-4] INFO  org.hibernate.dialect.Dialect  - Using dialect: net.sourceforge.squirrel_sql.fw.dialects.MAXDBDialectExt$MAXDBDialectHelper
2010-02-01 16:12:15,421 [Thread-4] INFO  org.hibernate.dialect.Dialect  - Using dialect: net.sourceforge.squirrel_sql.fw.dialects.McKoiDialectExt$McKoiDialectHelper
2010-02-01 16:12:15,437 [Thread-4] INFO  org.hibernate.dialect.Dialect  - Using dialect: net.sourceforge.squirrel_sql.fw.dialects.MySQLDialectExt$MySQLDialectHelper
2010-02-01 16:12:15,437 [Thread-4] INFO  org.hibernate.dialect.Dialect  - Using dialect: net.sourceforge.squirrel_sql.fw.dialects.MySQLDialectExt$MySQLDialectHelper
2010-02-01 16:12:15,437 [Thread-4] INFO  org.hibernate.dialect.Dialect  - Using dialect: net.sourceforge.squirrel_sql.fw.dialects.OracleDialectExt$OracleDialectHelper
2010-02-01 16:12:15,437 [Thread-4] INFO  org.hibernate.dialect.Dialect  - Using dialect: net.sourceforge.squirrel_sql.fw.dialects.PointbaseDialectExt$PointbaseDialectHelper
2010-02-01 16:12:15,437 [Thread-4] INFO  org.hibernate.dialect.Dialect  - Using dialect: net.sourceforge.squirrel_sql.fw.dialects.PostgreSQLDialectExt$PostgreSQLDialectHelper
2010-02-01 16:12:15,437 [Thread-4] INFO  org.hibernate.dialect.Dialect  - Using dialect: net.sourceforge.squirrel_sql.fw.dialects.ProgressDialectExt$ProgressDialectHelper
2010-02-01 16:12:15,437 [Thread-4] INFO  org.hibernate.dialect.Dialect  - Using dialect: net.sourceforge.squirrel_sql.fw.dialects.SybaseDialectExt$SybaseDialectHelper
2010-02-01 16:12:15,453 [Thread-4] INFO  org.hibernate.dialect.Dialect  - Using dialect: net.sourceforge.squirrel_sql.fw.dialects.SybaseDialectExt$SybaseDialectHelper
2010-02-01 16:12:15,453 [Thread-4] INFO  org.hibernate.dialect.Dialect  - Using dialect: net.sourceforge.squirrel_sql.fw.dialects.SQLServerDialectExt$SQLServerDialectHelper
2010-02-01 16:12:15,453 [Thread-4] INFO  org.hibernate.dialect.Dialect  - Using dialect: net.sourceforge.squirrel_sql.fw.dialects.TimesTenDialectExt$TimesTenDialectHelper
2010-02-01 16:12:15,453 [Thread-4] INFO  org.hibernate.dialect.Dialect  - Using dialect: net.sourceforge.squirrel_sql.fw.dialects.IntersystemsCacheDialectExt$CacheHelper
2010-02-01 16:12:15,750 [AWT-EventQueue-1] INFO  net.sourceforge.squirrel_sql.plugins.oracle.OraclePlugin  - setTimezoneForSession: user preference for init session timezone is disabled.  Local Timezone data types may not be displayed correctly.
2010-02-01 16:12:15,765 [Thread-7] INFO  net.sourceforge.squirrel_sql.plugins.sqlparam.SQLParamPlugin  - Initializing plugin
2010-02-01 16:12:16,140 [AWT-EventQueue-1] INFO  net.sourceforge.squirrel_sql.plugins.sqlparam.SQLParamPlugin  - Adding SQL execution listener.
2010-02-01 16:12:16,140 [AWT-EventQueue-1] INFO  net.sourceforge.squirrel_sql.plugins.sqlreplace.SQLReplacePlugin  - Adding SQL execution listener.
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Any help would be appreciated.
 
Many thanks,
Steve Brown