Hi guys... its my first time to encounter this problem after i installed an unattended windows xp... on the first week of using the computer it works fine but one day i encounter this error after login on windows xp it has an error with no msg only a YES NO button ang X icon....i put a registry tweak on the computer on which telling me what the computer is doing while logging in or shutdown... any ideas how to fix this problem? cause after i hit YES or NO it just automatically goes back to the login screen... i try to do a diagnostic test on SAFE MODE but the problem is still there during NORMAL MODE...