I enabled multiple users on my comp. Todae, after doing lots of updates, Microsoft Update, Avast Antivirus program updates, mindmanager update, I found a problem, which I suspect is either caused by the update from Avast or Microsoft. When I booted up my comp after these updates, and tried to login to my Admin account, it successfully logged in, and then logged me out. I could only log in properly on the second attempt. There is no problem with the default limited user account. I saw on Avast site that the new version fixed malfunctioning of the boot-time scanner under Windows NT/2000 (error "STOP c0000139"). I am using Windows XP Home, can anyone help me out with this problem?