My wife's Compaq Presario CQ5205Y Desktop ( Windows7 Home Premium, 64 bit) has been having BSOD episodes for the past 2 weeks. They appear to happen while the PC is in sleep mode and left unattended for long durations. She returns to the computer after an hour or more and....uh oh, it happened while sleeping. Sometimes it will bsod while she's online. But these episodes are rare. I've run diagnostic after diagnostic, checked for faulty/out-of-date drivers (updated some), tried to update the BIOS but found none available by HP, and even did a clean re-install. All to no avail. I'm only somewhat tech savvy. But, I thought I could solve this problem. Not so. I need help. I went thru many of the posts here, but it seems the ones that deal with sleep mode are bsod's coming OUT OF sleep. This happens WHILE IN sleep mode. I've got minidumps zipped for analysis and can provide any more info when needed.