I deleted then re-added my main email address (hotmail) from my Blackberry because I wanted to enable wireless reconciliation and I had disabled it. This was the only way I knew how to do that.

So, it worked like a charm. Now, I went to sync my Blackberry, and the sync wants to erase all my old entries from my Outlook. I went to my device, and all my entries show DEFAULT for the calendar instead of my hotmail, which was the previous default before I deleted then readded the account.

The hotmail account still hows as my default in OPTIONS > ADVANCED OPTIONS > DEFAULT SERVICES > CICAL But as I say, it wants to delete all 600 or so entries in my outlook.

I have Verizon service, using BIS on my Curve.

Any help would be appreciated.

Follow these instructions, you need to delete your entries and re sync because you deleted your default email account...

All of my Calendar events are not showing in my calendar - BlackBerryFAQ

Just skip the part about deleting your email account on BIS. you did that already...

Thanks to zerog46. Worked like a charm