If you are experiencing intermittent "500 Server Errors" while using Movable Type and are using MySQL for your database, we are aware of the cause of the problem: a nightly cPanel update of a buggy version of the DBI and DBD::MySQL drivers. See this post on the Professional Network Weblog for more details.

The MT engineering team has been actively working with developer to help him rectify the problem. We apologize for any inconvenience and will keep you up to date on our progress as well as post here when the problem is solved.

UPDATE (Jul 6th, 2005 11pm PST): The developer of the DBD::MySQL driver reports that he has discovered the source of the problem (with the help of our own Brad Choate) and posted a fix for the module. Those of your with hosts using automatic cPanel updates should see the updates within the next 24 hours.

UPDATE (Jul 7th, 2005 15:40 PST): The MT Engineering team has evaluated the new DBD::MySQL module and confirmed that the bug has been fixed. Affected Movable Type customers who have been upgraded to the latest version of the driver, either through cPanel or manual installation, have also reported normal operations have resumed. Thanks to Patrick Galbraith (DBD::MySQL developer) for his assistance and to you all for your patience.