I installed update 14.4.2 on May 29.  Since that time, Outlook has announced that the database needed to be rebuilt 6 times, in some cases multiple times a day.  Rebuilding the database works for a short period of time without problems.

I have 3 email accounts set up - 1 Exchange 2007 account and 2 IMAP accounts.  I have used this setup for several years now, and have rarely needed to rebuild the database.

Anyone else having similar issues?