I'm running Windows XP Home Edition on my PC, which has frozen during startup. It gets as far as the startup bar across the bottom of the screen followed by a very dim image of the Windows XP screen, but doesn't get any further. I then have to do a power down, after which (on starting again) I get the MS-DOS error screen message saying 'unfortunately there was an error during the last startup, please choose one of the following options' (or words to that effect.) If I choose to go back to the last known good configuration, I get the same result. Anyway, I restarted several times with the same result. The progress bar would move for about 10 seconds, then it would get ratchety and then finally freeze. I am able to startup OK in Safe Mode and connect to the internet.