I am having a problem on portal 2. When i press the "play" button for portal 2 it opens the game and shows the valve sponsor clip and when it is finished the game gets to the home screen then shuts off and i am back to the steam desktop page. When i look in the taskbar the portal game is still there and when i click it, it opens a window saying "could not load library client." Then there is no way of getting to the game. *Before this my game would shut down while i was in mid-game and i would have to open it back up. *This also is not just me, I have some friends that have this game who run off of the Microsoft Windows who have the same problem. Please help i just got the game and really love it but this is very annoying!