hi my computer has gone into power saving mode and it won’t come out i move the mouse around and i have restarted it.all it says it power saving mode i’m running windows xp home.my video card is a ati radeon x 1600 pro.i’m not sure if this is the problem or not.i took the hard drive out and put it in my other computer and scanned for viruses and there were none.any suggestions.thanks for reading.