A grayed out server always deals with the filters. The filters applies to the "all servers" tab, as well as your favorites.
If the TG server is grayed out, try unchecking everything, ESPECIALLY hardcore, empty, and full. Because the TG server is technically modified, it's neither hardcore nor "normal". So checking and/or X'ing the hardcore filter will gray out the TG server.
... walking into a room after BrokeBack entered it, and just seeing a pile of dead corpses, and he's all cheery, happy-go-lucky ... that bastard. -Zhohar Brokeback shoots better with a lazy eye. -xBadger