I don't use this pc much but the last time I used it it was perfectly fine which was a while ago. Now I turn it on for my ex's kid so he can play spore and whenever I start ANY game it freezes at the start of the game. Thought it was a driver issue, changed drivers. Then that didn't work so I changed the video card. Then that didnt work so I ran memtest and the ram passed. Then maybe thought the old XP install was borked so I put on win 7. Still freezing so I changed out the hard disk altogether. Pc specs: Amd phenom II 9950 Asus M3A79-t deluxe Ati 4870 x2 Corsair XMS2 DDR2 PC 6400 Pc power and cooling 750w psu I *CAN* boot into safe mode with no issue and even to a normal desktop in the msconfig diagnostics mode but I cannot get online even with safe mode with networking. The system event viewer says: 'The network list service service depends on the network location awareness service which failed to start because of the following error: the dependency service or group failed to start' Application event viewer says: 'The winlogon notification subscriber GP client was unavailable to handle a notification event' What the problems are: PC freezes in XP when I try to launch a game PC freezes in win7 after welcome screen but before desktop login PC will boot in safe mode/msconfig diagnostic mode. So far I have: Tried 2 different win 7 copies 2 PSU's 2 hard disks 2 video cards, ATi and Nvidia 2 sets RAM Uninstall/reinstall video drivers using driver cleaner/driver sweeper Ran chkdsk Ran MEMtest Bios looks good Board looks good, no bulging caps or irregularities And still freezing at the exact same point of bootup. I checked the event viewer again, now I'm getting this: 'The following boot start or system start driver failed to load: discache spldr Wanarpv6 It looks like this is where the hang up is but 2 different win7 installs tells me it's not a coincidence when one version is running fine on my other pc with no issues for much longer than this one. And these are not existing installs, they are fresh installs on formatted drives. Suggestions?