Why do people complain about this? Sure it was choppy when I started by own server with like 9 bots on a big map, but then I jumped into a scoutzknivez game that was very full and the macbook did just fine. Even faster than my desktop. And I for one don't think HL2 could run any better. It's great. What complaints do people have on this game, then? Also, I'm running the 1.83 with 2GB ram.