Question : Username/Password greyed out at login prompt

Username/Password greyed out at login prompt on server/desktop.  We are seeing multiple users PCs and servers having this issue where after ctrl-alt-delete the username and password is greyed out.  I googled this and found some things about VNC being the culprit.  You can RDP into the server still.  I had VNC on the server but have had the service disabled for awhile now.  The fix to this is to reboot the machine.  I need to login local to that server and cannot reboot it.  Anyone have any fixes?  I can RDP into it.

Answer : Username/Password greyed out at login prompt

Here is what I have found.

This link has some potential:  http://www.realvnc.com/pipermail/vnc-list/2006-October/056174.html

The remainder of what I found has to do with Gina.dll and MSGina.dll and how VNC interacts with it.  

http://www.vnc.com/pipermail/vnc-list/2004-May/045217.html

I found loads of docs at MS knowledge base site searching for the two dll's.  A few look like they have potential but I would have to build a lab and recreate the error to determine if they are viable.  

In the end, it may be faster to schedule a reboot, then upgrade you VNC client.

I hope this is useful.

Chace