I don't have the foggiest idea what's going on here - My machine has just today started totally freaking out - it will restart unexpectedly, and it is constantly giving me the MS "program xxx has encountered an error and must close" window for any number of programs (ATItool, CCC, System Restore, Firefox, all sorts of things), and then restarting again...this started after I tried to turn off the machine (via start menu) and it would just restart instead. I can't find any odd processes running, and I even defragged just yesterday. I tried safemode and ran Avast virusscan to look for viruses, and it even restarted then. I can't get through a scan w/o a restart. I'm totally perplexed - I build this system from scratch in January and this is the first and only thing that has gone awry that I haven't been able to pinpoint within minutes... any ideas? Hardware failure? It's currently up and running for ~ an hour w/o issues but I'm not at all convinced the gremlin has departed.