I am working on a friends pc its a IBM Aptiva. He said he was playing some DOS games and the last time he left a game it wouldn't boot up. I starts the bootup process goes to a Atpiva splash screen and then to your screen to select safe mode or dos mode or command prompt ect. At the bottom it ask do you want to go back to windows and leave dos mode. If you say yes it just reboots and cycles to the same place every time. You can go into safe mode ok but don't see any problems there. How do I short of formating and starting over get out of this reboot loop it seems to be in.