Hey guys, after using Bootcamp for a while, Steam finally came to Mac. I first transferred over Portal (only compatible game in my library) and tried to run it. The intro movie was displayed, and I saw the usual blurry test chamber pic with the loading sign, the screen then goes black for a moment. I am then awakened by an almost seizure-inducing flashing of that same main menu pic, only it isn't loading anymore. There is no text in the menu, but I can hear the music. I managed to somehow launch the game while clicking around blindly while enduring a rapidly flashing screen. I then see the standard wake-up scene in the chamber, only it's dark and there seems to be textures missing, they are all weird looking and dark. Plz help. It worked fine in Windows 