I have a self built PC runnung win7 64bit has been working well for 6 months. has just started shutting down in the last week. Pentium dualcore E6500 Gigibyte EG41MF-US2H Motherboard. Steps so re-enstalled windows 7 changed out PSU due reported errors with sonata III updated BIOS with @bios not solved problems Problem signature: Problem Event Name: BlueScreen OS Version: 6.1.7600.2.0.0.768.3 Locale ID: 2057 Additional information about the problem: BCCode: 9f BCP1: 0000000000000003 BCP2: FFFFFA8004358A20 BCP3: FFFFF80000B9C4D8 BCP4: FFFFFA8003FFA010 OS Version: 6_1_7600 Service Pack: 0_0 Product: 768_1 Files that help describe the problem: C:\Windows\Minidump\091310-18236-01.dmp C:\Users\Matt\AppData\Local\Temp\WER-33961-0.sysdata.xml Read our privacy statement online: If the online privacy statement is not available, please read our privacy statement offline: C:\Windows\system32\en-US\erofflps.txt Cheers Elephantshed

This is a forum for Exchange server - not Windows 7. You should repost your question in the Windows 7 forums. Simon.Simon Butler, Exchange MVP. http://blog.sembee.co.uk , http://exbpa.com/