I just got a new PC custom made by my step-son. Pentium 4 2.80 Ghz, 512 mb RAM,40 GB haerd drive, CD burner, DVD/CD ROM drive. Windows XP Pro. Got one problem driving me nuts and had it solved on old machine but can't remember the route in its entirety. I've eliminated every reference I can find to MSN Messenger and/or Messenger. In spite of this 4-5 times each hour I get a popup or rather slide in window with title bar of "www.msn users.com" asking if I want to sign on to .NET Passport. I've never even registered to anything on MSN. I've done as thorough search as I know how for this pest and do not even see anything I recognize in the Registry although I'm not at all keen on doing a registry edit. Anyo one of you pros out there had a similar problem and a solution?