jogl app freezes than restarts mysteriously

hi all,
i have a strange problem.
my java/jogl application freezes after approximately one hour running. after another twenty minutes in the freeze-state it starts runnning again, so to say isn´t frozen anymore. so the application doesn´t crash, just “pause” for some time.
what´s going on???

i´m using a dell pc with a nvidia gforce card, windowsXP, 512 mb ram.

thanks,
pako

The only time I’ve seen hangs of this sort they were usually driver-related. Try the JOGL 1.1 beta 4 release just posted and specify -DATI_WORKAROUND=true on the command line. Please post to let us know whether that works around the problem.