updated 07:55 pm EST, Mon December 22, 2008
Apple Mail update
Apple has released an update to its Mail app that addresses several stability issues. The problems revolved around the recent change to Mac OS X 10.5.6 which had caused Mail to unexpectedly quit for many users. The release should be installed if the OS update did not properly install the "3.5 (930.3)" version of Mail.app. Users can check the exact build by opening Mail and choosing "About Mail" from the menu.
The release appears to be Apple's first fix amid the large number of problems reported with the 10.5.6 update. Users have encountered lags with the installation, system crashes, kernel panics, hardware connectivity issues and even disruption of Time Machine backups.
The Mail update is available from Apple's support page. If the correct version is already installed on a system that still shows stability issues, the company suggests that third-party plug-ins should be removed or updated.