I had posted a message to the Device Drivers list as: http://www.techspot.com/vb/topic67844.html I'm working on debugging a BSOD problem on a user's computer. This is a Dell Latitude D600, with Windows 2000 Professional, SP 4 & recent Windows Updates installed. The machine in questions is equipped with: Motherboard - Dell Latitude D600 Motherboard CPU - Intel Pentium M, 1600 MHz cpu Audio - Intel 82801DBM ICH4-M - AC'97 Audio Controller [A-1] Video - MOBILITY RADEON 9000 (32 MB) RAM - 2 GB Disk - Win2000 Promise Ultra100 (tm) IDE Controller with FUJITSU MHT2080AT PL (80 GB, 4200 RPM, Ultra-ATA/100) drive Optical Drive - _NEC DVD+RW ND-6100A (DVD+R9:2.4x, DVD+RW:8x/4x, DVD-ROM:8x, CD:24x/16x/24x DVD+RW) Additional details of the situation are in my prior posting - but essentially, at present, on power transitions (shutdowns, attempts to enter stand-by), it BSOD's with a BugCheck of 9F (DRIVER_POWER_STATE_FAILURE). Here is a sample of a stack trace from a representative minidump: STACK_TEXT: f65dfae4 8048bf53 88a7102c 00000001 00000000 nt!IoBuildPoDeviceNotifyList+0x274 f65dfb04 8048badf 00000000 f65dfbf4 f65dfc78 nt!PopSetDevicesSystemState+0x85 f65dfbe0 80465014 00000006 00000004 c0000004 nt!NtSetSystemPowerState+0x329 f65dfbe0 8043057b 00000006 00000004 c0000004 nt!KiSystemService+0xc4 f65dfc64 8048b826 00000006 00000004 c0000004 nt!ZwSetSystemPowerState+0xb f65dfd48 804904b6 00000006 00000004 c0000004 nt!NtSetSystemPowerState+0x70 f65dfd58 80465014 00000002 00000000 00000000 nt!NtShutdownSystem+0x2e f65dfd58 77f88e07 00000002 00000000 00000000 nt!KiSystemService+0xc4 WARNING: Frame IP not in any known module. Following frames may be wrong. 77f88dfc 00000000 00000000 00000000 00000000 0x77f88e07 Nothing seems to point to any specific driver (at least that I can tell). Basically, I started having problems when DivX software was installed on-top of the Roxio Easy CD Creator v 5.3.4 SP 8 Basic pre-installed by Dell. Now - both list as being removed, but the system still BSOD's. Any help or hints would be appreciated.