A fix has been issued by Apple for the new 13.3″ aluminum MacBooks. The fix concerns a problem where clicks on the trackpads would not be picked up by the MacBook (and the MacBook Pro) that were released last month. These are referred to as the “Late 2008” models.
The fix can be downloaded and installed through the normal Software Update feature build into Mac OS X, or you can download it here:
If you download it directly, be sure to follow the instructions.