Every time I power on my laptop it restarts before it boots all the way. It shows the screen with the bios version on it and begins booting XP. The bar on the bottom does move, so i know it is not frozen. About 15 seconds after starting the computer, a stop error message flashes on the screen for half a second and the computer goes back to the screen with the bios version on it. Also, whenever the computer restarts I get the message that says 'windows did not start successfully' and asks me if I want to use the last good settings that worked or if I want to start windows normally. I can no longer get windows to boot at all. Any help would be GREATLY appreciated. Thanks.