Hello all. Since I got a new HD6950 (came from a GTS250, and since then I reinstalled like twice the OS), I'm having those freaking BSOD's. Mostly of them said it was a atikmpag.sys error. However, when I was running 3DMark11 tonight, I got a new one: IRQL_NOT_LESS_OR_EQUAL. Usually I try do find out a solution by myself, reading forums and gathering from internet. But I'm getting really tired of these BSOD's, and couldn't realize what's the real problem. Current spec: Asus M4N98TD EVO Phenon II X4 945 @ 3750Mhz OCZ 2x2GB @ 1333Mhz CL9 HIS HD6950 IceQ X Turbo 2GB GDDR5 @ 880Mhz / 1325Mhz PSU Seventeen 550W 2 HDs - 80GB (which contains the OS) and 500GB for data.* If I'm missing any other information that you need to help me, please let me know. I'll get it ASAP. I'm attaching some minidumps, so you can check all the errors I've been getting. Sorry for my english, and thanks in advance! Nico. *Ps.: Also another question off-topic: Switching to an SSD for the OS would increase my overall performance ?