So i bought UT3 2 days ago on steam. and sometimes it bugs when i join game i gotta back up to the meny and it asks me for my cd key again so its already weird but i still type it back in. now it just did that again and i type my cd key in and it says its invalid. and i've tried and rechecked on steam for the cd key several times and waited and retyped and it still says its invalid like wtf? anyone have a solution or seen this before. thanks.