When i try to play Bb or Half-life offline,i get the message "this game is not ready to be played offline" i reinstalled steam and half-life and both updated. Anyone know how to fix this? I really want to play!

My friend had the same problem. I think first you have to shut down steam, then make sure that you aren´t onine. Start steam and hit the "offline" button. Normaly thats all !!!!

Thanks! that seemed to do the trick!