Hi guys. I built this PC about 4 weeks ago, and last night, I was playing Crysis Warhead. I beat the game, in fact, and as the credits began, the computer froze for a few seconds, and then presented to me a Blue Screen of Death. It was a "PAGE_FAULT_IN_NON_PAGED_AREA" regarding Ati2mtag.sys. I was wondering what this could mean, and what could potentially be the physical problem (GPU or RAM?). I restarted the PC, and it's been working fine. I've never received a BSOD on this new computer before. I'm doubting its hardware due to no other signs of hardware malfunction, and the fact that it was regarding ATi2mtag.sys. Everything is about 4 weeks old. It's using G-SKILL RAM. Rest of the specs are in my sig.
Man, that is serious. You might get a better response asking this question in the Hardware or Tech Support sub-forum. This link has some information about the specific error code. Given the identified process, I would say uninstall and re-install your video card drivers. -monkey