Everything seems to be running fine but then all of a sudden: A: Screen Freezes and all I can do is move the mouse B. Screen goes all fuzzy while playing an on-line game C: I leave the computer running and come back hours later and nothing is responding and screen has gone to sleep. I have checked and updated all important drivers and I also installed HijackThis and will post the log below. HijackThis log is attached. Any help would be appreciated, especially on how I can diagnose why this is happening and pinpoint the issue. Thanks in advance.