destineer just released an update, might want to check it out:
http://www.destineerstudios.com/support/aoe2.html
Direct Download:
http://www.destineerstudios.com/support/dl/AoE2_1.0.6_Updater_US.zip
Age of Empires II Update Version 1.0.6
Age of Empires II 1.0.6 Update addresses several problems in the game including improved networking and improved OS X support. It is recommended for all users.
As of this update, Mac OS X 10.3.9 or later is required.
Click below to update Age of Empires II: Gold Edition for Macintosh to version 1.0.6. After the download is complete, double-click on the downloaded file. This will create a file called "Age of Empires II 1.0.6 Updater" Double-click on this file and follow the instructions on the screen to update the game.
Age of Empires II 1.0.6 Update addresses several problems in the game including improved networking and improved OS X support. These include the following:
1. Fixed Out of Sync errors when playing a network multiplayer game with a host or client running Mac OS X 10.5.2 or later on an Intel-based Mac.
2. Fixed DrawSprocket errors that prevented the game from starting on some Intel-based Macs.
3. "Use 256 Colors on Mac OS X" in the config dialog is no longer enabled by default, this is to help prevent problems with some Intel-based Macs.
4. "Use 256 Colors on Mac OS X" has been renamed to "Force 256 colors (Use on older Macs)" to clarify its purpose.
5. Fixed layout of French and German config dialogs so strings are no longer cut off.
6. Updated GameRanger libraries
7. Updated NetSprocket library to eliminate sporadic errors when joining a game.