My Games for Windows account is stuck

Question

I bought Super street Fighter IV Arcade Edition for Windows a couple of weeks ago. Instalation went perfectly normal. But When I tried to use the game the first time, I could not log into Games for Windows Live. Apparently, I tiped the wrong password or something. Ever since then, The game no longer demands me to log in, and it doesn´t respond to my joypad, or my keybord. The only thing I can do is watch and close it by typing alt F4. What can I do?