i recently built a new computer - ati5850 4gb ddr3 ram2000mhz intel 17930 2.8ghz 650w power supply and installed windows 7 64 bit on it.P6tSE motherboard. when it boots up it flickers and then goes to the login screen which isn't much of a problem but may be part of the bigger problem. all my games are 32bit and when i play them sometimes they run perfectly fine and other they just crash/ or pause for 15 seconds and then start working again.also twice while i have been on the internet flashplayer has crashed and i have had to reload pages. Also i got the bluescreen of death for no reason? not even playing a game at one of those times? would it be a problem qith my gpu? psu? or os 64bit?