I have recently changed hard drives on a system with an ecs k7ama board and 800 chip. I also changed some of the peripherals. I am still using win xp pro. Since the new hard drive install I have been unable to shut down the computer automatically. I goes to the black screen that says "YOur computer is ready to be shut down and I have to flip the toggle switch on the back of the power supply. I didnt have to do this before. Is it a bad install? Should I try to reinstall? I'm lost at this point. Please help.