Outreach Project Tool

I have a new install, with the Sept 2007 release. Everything is working except the jpgraph. During the setup, I did not see the sample jpgraph, but am not sure what to check. I only got an unrecognized graphic symbol in IE (little box with Red X).

phpinfo shows that I have gd working:
============
GD Support enabled
GD Version bundled (2.0.34 compatible)
FreeType Support enabled
FreeType Linkage with freetype
FreeType Version 2.2.1
GIF Read Support enabled
GIF Create Support enabled
JPG Support enabled
PNG Support enabled
WBMP Support enabled
XPM Support enabled
XBM Support enabled
==================

When I try to access a Gannt chart, I get:
Fatal error: Cannot redeclare GanttLink::$iArrowType in /home/design/public_html/opt/include/jpgraph/jpgraph_gantt.php on line 1935

Any help would be appreciated. I am running on Linux, with PHP 5.

Thanks,
Chris