I have recently installed Outlook and I have setup my IMAP email account. After it finished downloading all of my emails and I've imported my calendar from iCal, things were fine. A couple of restarts later, my account disappears from Outlook as well as all of my email and calendar entries.

I was able to rebuild the account (Opt+Click on Outlook) and recover the missing items. After this, I exported everything from the account in case it happened again. Another restart and everything was missing again just as before. I checked to see if I could rebuild like I did before, and there was one thing listed (Identity 1). I tried rebuilding that and there was nothing recovered from it.

I'm currently importing the backup I mentioned earlier. My question is how can I prevent Outlook from deleting everything? I'm using Outlook 14.5.4. This is not an Exchange account.