If you ever get a temporary profile problem

in windows, when the server cannot find a network path to a roaming
profile, it may start to use a temp folder which it will delete after
the user has logged out.

unfortunately, sometimes that lingeres around in server 2008, so what
you will need to do is goto the following key in regedit

hklm->software->microsoft->profilelist

and delete the sid of the user in question. that will be enough to
reset the sid and get the user back up and running