I have a clone PC (windows 98), when you try and shutdown the PC Windows closes and the screen goes black with a blinking cursor in the top left hand corner of the screen. To power down the PC you must manually push the button. When you power it back on the PC boots straight into windows WITHOUT the scandisk for a bad shutdown. The PC appears like windows is shutting down, but the PC is not powering off. I have tried a BIOS update and that worked for about 2-3 days. Any suggestions?