If you are playing with Windows 8 make sure you check out:
In addition to that Metro apps shipped on the consumer preview kinda go wonky after joining the domain.
Note the following posts:
http://social.technet.microsoft.com/Forums/en-US/w8itproinstall/thread/e39a7312-7863-4645-9e66-d5b2fa3a4a15 and http://social.technet.microsoft.com/Forums/en-US/w8itprogeneral/thread/863fe449-4e31-444c-9b21-6accc0eb4a10
Also follow Philip’s blog to open up RDP on Windows 8 – see http://blog.mpecsinc.ca/2011/09/windows-8-remote-desktop-connection.html
Bottom line when you join a Windows 8 consumer preview to a domain Metro kinda loses it’s mind a bit.