Hi Folks. In two games(dead space and NeverWinterNights 2, both legitimately purchased, no cracks in play) I am crashing within a minute of getting into the game. Whatever sound is playing gets stuck in a very short loop, and the monitor loses signal and displays the power saving mode message. Both games are freshly installed and updated to the newest patch. It is worth nothing that I can play plenty of other games at 1680x1050 with all settings maxed.(far cry 2, warhammer online, fallout 3 have all had a lot of play time recently) Specs: 2x2GB OCZ platinum @ 800 intel C2D e8500@ 3.16 sapphire hd4870 512mb @ stock speeds(temp never getting higher than 70C) sound blaster audigy generic dvd burner 3 500gb barracuda 7200rpm HDDs cooler master real power pro 650w PSU 22" lcd, 1680x1050 Windows Vista Ultimate 64bit SP1(+the stability update) Latest ATI drivers 8.11 Latest sound and chipset drivers directx 10 What I have tried so far: Reinstall hardware drivers(chipset,sound, video) Reinstall directx Try another catalyst version(8.10) Disable all sound devices Uninstalled sound drivers(still crashes) Underclock video card(by 50 and 100mhz) Made sure all Vista updates have been applied Can anyone possibly shed some light on this? I normally can get just about anything working right, but I feel like I must be missing something here.