It involves starting Entourage with the Option key held down.
(at least I think it's the option key)
I thought I would give this forum a try as i cannot figure this out for the life of me and I so frustrated. Seems recently every time I open Entourage it hangs as soon as I enter my account password. It must be forced quit. I have tried everything I could find online as to issues including font caches, identities etc. I cannot empty the exchange cache as you must be logged for the command to show up. I don't know if this is an Apple OS or Microsoft Office issue or how to find out. I don't know how to read the console logs to see if there ma be information there that might help.
I hope someone might have a a lead as to a way to go with this as my whole office is run from this and is on hold until I can get it fixed. I have a MBP 2.4 with 4 Gig. Running 10.6.4.