Overture crashing randomly

[gamercoon]

Hi,

I purchased and installed Penumbra collection 1.1. It seems to run fine for several minutes before crashing to the desktop, reporting "ERROR_ACCESS_VIOLATION in Penumbra.exe." I have tried using the other version of the libvorbis.dll module as your faq suggests, but it seems to have no effect. I have tried lowering the graphics settings, cleaning out my fans and case, etc, but to no avail. I used to have heat problems on this system, but I made several modifications to solve them, and my system runs quite cool now and I doubt that's the issue.

At first I noticed that AVG was trying to run a scan when the crashes occured, and even though I told it to stop all scans, it was doing it again after each crash. I eventually disabled the AVG service and stopped it running all together, but the crash still occurs.

I updated both my video and sound drivers (they were in fact, quite out of date) but the crash still occurs.

Here are my system specs:
Windows XP 32-bit SP3
AMD Athlon X2 Dual Core 4200, 2.21 Ghz
2GB RAM
nVidia GeForce 7900 GS, primary, one monitor attached (ViewSonic VX924)
nVidia GeForce 9400 GT, secondary (use for attaching TV via HDMI), all heads diabled.

Please help, this game looks great and I really want to play it!
-Gamercoon