Hi, I reinstalled xp pro with format after a trial of Win 7 did not live up to expectations (despite running the compatibility program some hardware - netgear sc101 & software was not compatible). No hardware changes have been made to the system (except an extra 500Gb sata drive) which has run perfectly for the last 12 months. I am getting bsod at random times but have noticed they normally occur a few minutes after comming out of standby (S3). On the last two I noticed that on reboot my usb bluetooth device was reinstalled. (I changed the dongle and drivers after the bsod on 14-12-09 but is still went through the routine on 17-12-09) I have attached dmp files as I hope someone can help me with this. Thanks Martyn