Background Information
After launching Microsoft Project Professional, the Project Server logon hangs. After the user clicks the Cancel button and then attempts to log on a second time, the system successfully connects to Project Server.
Resolution
The most likely source of this problem is McAfee VirusScan Enterprise 8i. Refer to the following URL for the steps to resolve this issue:
Microsoft Project Server 2003 and VirusScan Enterprise 8i Compatibility Issues