I'll try to run the memory test soon. I've updated my BIOS to F10K (a beta version) and it seems to have resolved the random unexpectedly shutdowns of before. I flashed it because it was suggested as the answer to the error I had.
However, though it appears to have fixed the sleep issues, I still get the errors I mentioned in my previous post. I think the two issues are unrelated. Is the error something I should be worried about or could I just ignore it?
ps. I noticed I forgot to mention I have Windows 7 Ultimate (64 bit)