My laptop has suffered two BSOD from the above INSIDE my backpack as it was hibernation. Needless to say, the laptop was hot, and not in a good way. This same BSOD also happend outside of the backpack (just in case). Booting up Windows again involve waiting for about 5 minutes for chkdsk to complete on C:\. This always resulted in some non-critical index problem. Google reveals that 0x9F has several KB: 941858, 937322, 943899, etc.. Only problem is that I already have Vista SP1 (official) installed. All these individual updates refuse to install because they "do not apply." Anyone has a similar problem? Laptop is in signature. (I now wait for all shutdown/hibernation to complete before putting inside backpack).