The date stamp on the priv1.edb and stm files is incorrect. Today is 11-20-06 and the date reads 9-29-06. I'm stumped! The event logs from around that time do not reveal anything out of the ordinary.
This is a Windows 2003 box with Exchange 2003 SP1.
I have not tried restarting services to see if the date will change - might try that later today.