After repairing corrupt Exchange 2007 databases with ESEutil I started getting event ID 20154 & 20152 on my BES 5.0 server.
17 of 40 mailboxes could not be opened by BES, however the remaining 23 are working without any problems.
I have verified permissions; re-installed BES 5.0 (no errors) and reset both servers (BES + Exchange).
I have tried removing the BES user, add new user, wipe handheld, devicecleanup.exe util and activate fresh - I keep receiving the encryption verifications, however Enterprise activation will not start - no contacts, calendar and global address book look up
Initially I received an error when opening BES Admin Console- blackberrydevicemanager.exe - RAPI.DLL was missing and re-installing the application may resolve the problem - this error went away after re-installing BES