Game freeze and system shutdown/lock up

[rhodesl29]

First, thank you all very much for you help.

I have:

Windows XP Pro
NVIDIA GEforce 6800 card
AMD Athlon XP 3200+ 2.19GHz
1.00 GB of RAM
Audigy SB sound card
I have updated all drivers and XP
I have an official version of Civilizations IV (vanilla) fully updated
I have turned down the settings to medium graphics 0 anti-aliasing and turned off the interface and ambience sounds

My problem:

Game will freeze sound will start skipping and after about 2 minutes or so the system will restart my computer.
Initially this seemed to only happen after I would go to the city screen, but I just had the same problem occur while moving a scout.

Of note:

I am having a few issues with my C-Media AC97 Audio Device drivers. Not sure if this has anything to do with the problem.


Any suggestions or fixes would be very appreciated as the costumer support available for Civ4 is rather lacking.

 

[rhodesl29]

Shameless bump!
Probably too busy with Beyond the Sword to check the forums.

 

[ori]

with the computer restart this really sounds like a hardware problem - maybe something overheating that forces a restart. I don't know if a faulty Soundcard can do that though...