why would Remmina stop working?

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http://askubuntu.com – Until sometime last night, I had remmina working fine. I could run RDP through an SSH tunnel and all was well. Then it stopped working. I can get as far as the password dialog for my work machine, but then it just says "Cannot connect to RDP server localhost". I can't even find any logs that look interesting. I've re-installed remmina, cleared my .remmina directory, restarted my machine, and even restarted my gateway. Just to make it really weird, my laptop (which has the same setup -- latest Ubuntu and Remmina) can make the connection just fine. It is even going through the same rout (HowTos)