It seems to be getting worse. Today it cashed with a MACHINE_CHECK_EXCEPTION 0x9C.
This is the first time I've seen this one and according to the BSOD index, it doesn't mention anything about possible driver problems.
Attached is the memory dump. I never got the chance to try the clean boot option yet.
The MACHINE_CHECK_EXCEPTION (STOP 0x9C) is an error that pertains to XP, it's been replaced in Vista and Win7 by STOP 0x124.
In general this is a strictly hardware/compatibility issue. If the clean boot doesn't remedy things, then we're going to have to start looking for a hardware failure.
Summary of the BSOD:
Code:Built by: 7600.16539.amd64fre.win7_gdr.100226-1909 Debug session time: Tue Jun 8 18:34:58.498 2010 (GMT-4) System Uptime: 0 days 0:50:58.495 *** WARNING: Unable to verify timestamp for Unknown_Module_00000000`00000000 BugCheck 9C, {0, fffff88003097c70, 0, 0} Probably caused by : ntkrnlmp.exe ( nt!KxMcheckAbort+6c ) BUGCHECK_STR: 0x9C_GenuineIntel
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