Could anyone advise me on how to continue to play Half life 2. I have played about three levels without any real problems until I started to receive an update for, I presume steam and this was interrupted with the result that I now keep getting the message 'the game is not ready to be played offline yet' I do not know how to renew the update. I have sent steam support two e-mails which remain unanswered. Am I the only person with this problem? Thank you in anticipation.