My kids use my PC for games and learning software so I have Fast User Switching setup to jump between their and my profile.

I just re-installed VMware Server 2.0.1 and had to re-dig through the steps to re-enable the Fast User Switching.

Following the Microsoft KB302346 points me to the GinaDLL entry in the registry.

You just need to delete the following line from the registry:

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\GinaDLL