I've heard that other macbook users have got the orange box working. I'm trying it myself, and Half-Life 2 ran nice and smooth at native resolution... until I walked through a door a few minutes into the game, and it hung up at a loading screen. It does this every single time. Then, I tried Team Fortress 2. Starts up well, and just clicking on "options" hangs that up. It doesn't seem to be a graphics related issue, but instead something else. I tried installing the omega drivers, as well. Didn't help. 2.0 GHz White, 1 GB RAM.