Crashes All The Time

[ACraigL]

I have exactly the same problem. Overture and BP ran fine, but Requiem crashes. I don't get anywhere near 15 minutes -- usually 10-30 seconds, and I'm only just past the opening. I can't get anywhere due to constant ATIKMDAG crashes. Drivers are all up to date.

I have 4GB RAM, ATi 3870 and Intel E8400 @3.0GHz. Vista Ultimate 64-bit.

I do not believe heat to be an issue in this case and not other game I have owned (Crysis, Left4Dead, Assassin's Creed, etc) have ever caused this issue.

Would like to finish the series (penumbra collection on DVD from Amazon), so any advice welcome.
Thanks!