I have been running CS:S on my macbook pro 2.16ghz with 1g of ram and the x1600 vid card and am still encountering a lot of lag under lowest res/settings. I was wondering if you could clarify how "You can create a file named "autoexec.cfg", located in /Program Files/Steam/Steamapps//counter-strike source/cstrike/cfg" in Crossover and also would appreciate any other ideas and tips for getting Source to run smoothly.