I recently purchased Half Life: Source for my Steam account on my friends computer (an XP laptop). With OS X 10.5.4 I downloaded steam and installed it using CrossOver games. It works quite well and I was able to download Half Life: Source and Half Life Deathmatch: Source onto my computer, but when I run it, I get a white screen. It plays the intro video music, but with no picture. Soon after that it usually crashes. Are there any executable commands I should run half life with? I've seen Half Life 2 running on a macbook, so I assume that Half Life: Source should run. I'm using a Macbook 2 Ghz 1GB RAM and an Intel GMA 950 with 64mb vid RAM (this may be the problem). Any ideas?