Aspyr Media, Inc. has released a free patch for Sid Meier’s Civilization IV.
Civilization IV Beta 1.61 Rev A
This update contains the following fixes:
– Better performance on certain Macs (particularly G5’s) that exhibited excessive CPU use in the original release. The game should no longer run dual CPU’s to 100% capacity.
– Some missing sounds will now play correctly. Other sounds may still be inaudible. A future official release of the Rev A patch will address those.
The download (15 MB) is available here: http://www.macgamefiles.com/detail.php?item=19218