- last post: 01.01.0001 12:00 AM PDT
Make sure you're both updated to the latest patches for your respective systems (I think that would be 1.04 for PC and 1.05 for Macintosh players). I play on a PC against a buddy of mine who runs Halo on a Mac and we've had no problems. Usually when we're trying to find the same game room, it's easier for one player who is already in the game to send the other the IP address for the server via IM or something. Hope this helps.