Having a weird problem with the Remote Desktop Connection client and pretty much anything else that requires you to enter a username and password.  If I delete the users writable profile then everything works like normal and allows you to enter your credentials to connect.  The next time the users logs in and opens the RDP client or tries to "Run As" another user you are not able to enter any credentials.  I attached the screenshot.  I tried to exclude the MSTSC.exe process from the snapvol.cfg file but no luck.

Any other ideas?