Hey guys, Haven't needed to visit since a year ago when a Prevx driver was causing me BSOD grief. Route 44 analyzed my mini dump and identified the problematic driver for me. THANKS again! Well I just had my first blue screen in a year and it was a surprise. Haven't seen this before. Can I ask your help on this one please? I have a sneaking suspicion. BlueScreenView shows this: ================================================== Dump File : Mini013112-01.dmp Crash Time : 1/31/2012 7:56:19 PM Bug Check String : DRIVER_POWER_STATE_FAILURE Bug Check Code : 0x0000009f Parameter 1 : 0x00000003 Parameter 2 : 0x88259428 Parameter 3 : 0x88259428 Parameter 4 : 0x85d8f720 Caused By Driver : ntkrnlpa.exe Caused By Address : ntkrnlpa.exe+cdb3f File Description : NT Kernel & System Product Name : Microsoft® Windows® Operating System Company : Microsoft Corporation File Version : 6.0.6002.18533 (vistasp2_gdr.111025-0338) Processor : 32-bit Computer Name : Full Path : C:\Windows\Minidump\Mini013112-01.dmp Processors Count : 4 Major Version : 15 Minor Version : 6002 Dump File Size : 145,992 ================================================== As last time, BlueScreenView likes to blame ntkrnlpa.exe but I suspect it's not it. Can Route 44 or someone available please take a look at my attached mini dump and id the probable cause? THANKS! Dave B Vista 32 Home Premium. IE9. Everything patched. Norton 360. WSA. Secunia.