Hey guys. I have a 13" Macbook Pro (2009) and I have Steam. I bought the Orange Box and had all the games working great. I got CS:S and it worked fine. a few weeks ago I tried to play HL:2 (after redownloading it) and it didn't work. Then I bought Garry's Mod and it didn't work, specifically it would open the window hl2_osx like it does for all Steam games for Mac that I use. I redownloaded Portal, HL:2 eps 1 & 2 and they didn't work either. The only games that work for me are TF2 and CS:S. Oh and I bought L4D2 and it doesn't work either. I talked with Steam support and they had me try 9 different things before telling me to restore my system and only installing Steam and downloading the games, which I really can't do since I can't find my restore discs. Anyone else have this problem and know what to do? I really don't want to have to boot into my Windows partition every time I want to play my Steam games. Thanks guys! Edit: So last night I moved to a new hard drive, and since I can't find my OS restore disk, can't get the drivers. I guess I won't be playing my other games for now! Oh Boy!