I was fiddling around a little bit last night with the sound settings, specifically trying to get the mic input to play ball. Didn't change anything serious though, and I don't really see how that could be the cause, but this morning the machine refuses to log in. It will boot up fine, but on login BSODs pretty much immediately, with the following error report and attached minidump. The computer has rebooted from a bugcheck. The bugcheck was: 0x1000008e (0xc0000005, 0x08244c8b, 0xbad1362c, 0x00000000). A dump was saved in: C:\WINDOWS\Minidump\Mini082109-03.dmp.