There is one other thing to try if you would like - force a 0xe2 BSOD and produce a kernel dump -
http://support.microsoft.com/kb/944564/en-us
It must be a kernel dump, though - which will be +/- 250mb in size. You will need to change your system crash settings from mini-dump to kernel dump.
I would then dbug it to see what, if anything I can find.
Let me know. . .
JC
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