hello. i usually play on tdr all weapons custom server as hope and change. i logged on a few nights ago but today it tells me" unable to launch request for the game is not known". i didn't patch it, and its still installed. i can even run single player. why would it do this to me all of a sudden? anyone have helpful ideas they are willing to share?

Please post in the GT Lite forums and the developers may be able to help you figure out what is going wrong with the program.