Won't open Graph pane on 50% of MacPB?!

[rik belew]

opening simple graph hangs (graph window doesn't open; this exception generated)
on this MacPB, MacOSX 10.6.8 with Java6 (64bit) enabled?!

the weird part is: i have a virtually identical MacPB (2.1GHz Intel Core2 Duo, vs. 2.5GHz Intel), also running 10.6.8 and the same Java SE6 version), on which Gephi works fine?!

<?xml version="1.0" encoding="UTF-8"?>
<report version="0.7">
<date>2011-09-03 12:33:18<!--yyyy-MM-dd HH:mm:ss--></date>
<exceptions>
<exception>
<title>javax.media.opengl.GLException: Attempt to make the same context current twice on thread Thread[AWT-EventQueue-1,6,IDE Main]</title>
<throwable>javax.media.opengl.GLException: Attempt to make the same context current twice on thread Thread[AWT-EventQueue-1,6,IDE Main]
 at com.sun.opengl.impl.GLContextLock.lock(GLContextLock.java:83)
 at com.sun.opengl.impl.GLContextImpl.makeCurrent(GLContextImpl.java:131)
 at com.sun.opengl.impl.GLDrawableHelper.invokeGL(GLDrawableHelper.java:182)
 at javax.media.opengl.GLCanvas.maybeDoSingleThreadedWorkaround(GLCanvas.java:412)
 at javax.media.opengl.GLCanvas.display(GLCanvas.java:244)
 at javax.media.opengl.GLCanvas.paint(GLCanvas.java:277)
 at sun.awt.RepaintArea.paintComponent(RepaintArea.java:276)
 at sun.awt.RepaintArea.paint(RepaintArea.java:241)
 at apple.awt.ComponentModel.handleEvent(ComponentModel.java:263)
 at java.awt.Component.dispatchEventImpl(Component.java:4811)
 at java.awt.Component.dispatchEvent(Component.java:4565)
 at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:679)
 at java.awt.EventQueue.access$000(EventQueue.java:85)
 at java.awt.EventQueue$1.run(EventQueue.java:638)
 at java.awt.EventQueue$1.run(EventQueue.java:636)
 at java.security.AccessController.doPrivileged(Native Method)
 at java.security.AccessControlContext$1.doIntersectionPrivilege(AccessControlContext.java:87)
 at java.security.AccessControlContext$1.doIntersectionPrivilege(AccessControlContext.java:98)
 at java.awt.EventQueue$2.run(EventQueue.java:652)
 at java.awt.EventQueue$2.run(EventQueue.java:650)
 at java.security.AccessController.doPrivileged(Native Method)
 at java.security.AccessControlContext$1.doIntersectionPrivilege(AccessControlContext.java:87)
 at java.awt.EventQueue.dispatchEvent(EventQueue.java:649)
 at org.netbeans.core.TimableEventQueue.dispatchEvent(TimableEventQueue.java:148)
 at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:296)
 at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:211)
 at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:201)
 at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:196)
 at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:188)
 at java.awt.EventDispatchThread.run(EventDispatchThread.java:122)
</throwable>
</exception>
</exceptions>
version>Gephi 0.8 alpha</version>
<vm>Java HotSpot(TM) 64-Bit Server VM, 20.1-b02-384, Java(TM) SE Runtime Environment, 1.6.0_26-b03-384-10M3425</vm>
<os>Mac OS X, 10.6.8, x86_64</os>
<cpucount>2</cpucount>
<glVendor/>
<glRenderer/>
<glVersion/>
<heapmemory>init = 67108864(65536K) used = 38142904(37248K) committed = 64946176(63424K) max = 532545536(520064K)</heapmemory>
<nonheapmemory>init = 24317952(23748K) used = 53120136(51875K) committed = 83140608(81192K) max = 136314880(133120K)</nonheapmemory>
<screensize>width=1440 height=900</screensize>
<screendevices>1</screendevices>
<modules/>

[Mathieu Bastian (mathieu.bastian)]

This is likely to be a duplicate of bug 799545