latley when i start up, it seems like it only fully loads about 1 out of 3 times. it either A. freezes up when it is at the startup loading screen, or B. just stays at a blank blue screen. Sometimes it will load but will tell me i have to restart. All this on top of it not coming back after an extended sleep period. does this happen to anyone else? I have repaired permissions, and used hardware check from the cd. thanks