Well I'm with Spiffy on this one. NIS takes very little resources that run in the background, and I have so much hardware to work with I don't think that's the issue. There's no way I'm disabling Internet Security while I play - I get way too many Trojan Horse or backdoor attempts to leave myself open like that.
I can't get rid of DirectX 9, I have a couple of other games that require version 9 and removing it or downgrading would render them inop - I can't see how an older version of DirectX would solve anything, but I'm no expert.
I tried reverting back to my original video card drivers (the OEM ones) and it didn't work. Just as many crashes to desktop.
This is getting very annoying - I love this game, but theres no way I'm paying for it if I can't even get it to run for more than 30 minutes without crashing.
(I've played with all my hardware settings and nothing seems to work. DXDIAG is looking perfect, everything is as it should be. The game crashes whether I'm running the highest or lowest resolutions. I have the hardware to run the video, I'm at 1024x768 32bit color with full textures running 75fps.)