Hi, This seems to be a problem in the released squirrel-sql-3.8.0-MACOSX-install.jar I installed using the wizard-type installer into /Applications/SQuirreLSQL.app Clicking on the new application icon then did nothing (other than wobble the icon for a couple of seconds) I found the squirrel-sql.sh and found that the paths are incorrect as described in this thread. If I run the script through Terminal I see the error: Error: Could not find or load main class JavaVersionChecker I can hack the script...