For some reason several, but not all of my Vista clients hung at the "welcome" screen for an hour before proceeding to the desktop screen. The clients were a mix of service pack 1 and 2. The domain controllers are all Server 2008, and are all service pack 1 or 2 as well. The application log has the following error: Log Name: Application Source: Microsoft-Windows-Winlogon Date: 7/24/2009 9:49:24 AM Event ID: 6006 Task Category: None Level: Warning Keywords: Classic User: N/A Computer: PC12.mydomain.local Description: The winlogon notification subscriber took 3599 second(s) to handle the notification event (Logon). I know the GPClient is Group Policy Client. What I cannot figure out is how or what is slowing it down. Users in my own department had the logon problem, but I did not, and we are in the same groups with the same policies! Any ideas?

Hi, Thanks for posting in Microsoft TechNet Forum. Please refer to the following KBs. Winlogon notification packages do not work after you upgrade to Windows Vista http://support.microsoft.com/kb/925519 When you try to log on to a Windows Vista-based computer, you briefly receive a "Welcome" message, and then you are logged off http://support.microsoft.com/kb/929825 Hope this helps. Dale Qiao

As it turns out I traced the isue back to a couple of Konica-Minolta Postscript printers that were being installed via Group Policy preference. The odd part is that the policy has been in effect for over six months without the issue occuring. But if I remove the printers from the GPO, things are much better. The day before the problem started I had been using a Windows 7 RC based PC to edit my Group Policies. I am assuming it updated something in an .adm file somewhere. Given the circumstances, it is almost impossible to really prove anything conclusively. I am merely speculating due to the timing of events.