Hello Purple Paws... Hairy Brown Paws here... and a tail!
Welcome to PCHF!
OK, for the first time, I'm a little bit unsure about this one, as it's the first time I have seen this kind of Blue Screen of Death, probably because I am not up to date yet with Vista, so your might just have to be my guinea pig for this one?
After throughly analysing your log, it would appear to be a DirectX driver issue, so just to rule out DirectX, please can you download and re-install the following:
DirectX® 10
The logs are showing that one of your system files (dxgkrnl.sys), is attempting to end and release video memory. Perhaps your ending a game at the time of the Blue Screen of Death? Before memory can be released, it must first be cleared. When it is coming to release that memory, it is finding that it has not been cleared, resulting in a Blue Screen of Death. This may also suggest a physical memory problem on the card itself, if it was unable to clear that memory.
What is throwing me off the track a little bit, is that I've search around to check for other fix's to this problem. Some have suggested that this is an overheating issue, others say it's a
CPU problem (although I don't see how). Compatibility issue was another. So, I without any solid fix's to this problem, I think we need to rule out one thing at a time.