Gamespy Lobby - "Bad Map" error?

[troff]

Hi there,

When I "Join a Game" in multiplayer online, no games show up at all in my list. Instead at the top right where the map name usually is it says "Bad Map".

I can provide a screencap if need be. Can anyone help?

Thanks in advance man!

[TBS]

The most obvious culprit would be a misbehaving mod, do you have any mods installed?