GL crash - no idea why

[EqUaTe]

I'm experiencing a crash in Xbench and the screen-savers utility when they try to use OpenGL (crashlog from Xbench attached).

 

I'm using 10.4.5, with the latest (afaik) Maxxuss patches.

Apart from this, it's pretty much working fine (though I also get a crash in safari when trying to use flash... but that's secondary at the moment :-P)

 

Everything else so far is working fine (except the bootloader, which warrants its own post).

 

 

Can anyone suggest how I can get this working?

I'm running this on my Dell Latitude C640, which has an ATI Radeon Mobility 7500.

Also, does anyone know how I might get Quartz Extreme running on it?

 

 

Cheers!

OSX___Xbench_GL_crash.rtf