Since I upgraded my video card (to a GeForce 6200) last summer, I have been unable to hibernate or sleep because the video will not come on upon restore and I have to reboot. All this to say, I usually just leave my computer on without suspending or hibernating it. I found a forceware driver update yesterday from Nvidia and install it. I go to try to sleep it to see if the driver update fixed the video card problem. Instead of going to sleep and waiting for me to wake it, it just starts up again and resumes right where I left it. I don't touch any keys or anything and it just comes back up. It is not like a restart either where I have to start all over - all my programs and files are up. The darn thing just won't stay off unless I shut it down (the same thing for hibernating too). What in the heck is the problem? I suspect there is something wrong with the PSU, but I don't know. Has anyone ever experienced this before?