I became very pissy after connecting for about 2 seconds to the TE servers last nite, STEAM kicked me off for its inability to validate my steamID ticket.
F'ers.
So I found that if you delete your CLIENTREGISTRY.BLOB and log back in, everything goes back to normal.
%program files%\Steam\ClientRegistry.blob
and thus I was able to run around and get shot to pieces by the likes of Gunner, HeyNow, and more....