Has anyone else come across this problem? LEXCERM, were you able to fix this? I have encountered a computer with the same problem, but every 'solution' seems to end in reformatting, which I am sure can be avoided. Its odd that you get two options under ALT+TAB, it seems like one may be a piece of poorly written malware trying to pose as the logon screen, just a thought, I'll try to grab a PE disk and check the startup items.