These problems just started 2 days ago. Generally I leave my computer running all day as I am working with it off and on most of the day. However, 2 days ago I left it running and went back about 1/2 hour later and the screens (2 monitors) were black. I thought it had gone to Sleep, but it wouldn't respond to any keys being pushed or to the mouse being jiggled. It is set to NOT Go to Sleep. When I started it up it wanted to know if I wanted to start Windows normally. Once it started I noticed that there was a message for me in the lower bar telling me that my Backup didn't save and to try it again. So, I did, multiple times and it wouldn't save. I did a System Restore to 2 days before the problems started and that didn't help either. About this time I started getting messages that Adobe Flash Player crashed and I updated that program, then it tells me that it needs missing plug-ins and I tried getting those to load and nothing happened. I did another install of Flash Player and that seems to be OK now. As long as I am working at the computer, it doesn't shut down and I'm not sure as to exactly how many minutes it takes of inactivity before it crashes as I'm not in the room when it happens. I am running Windows 7 Professional 64 bit, and the Asus computer is about 2.5 years old. Thanks you