[Jody Severson]

I had the same problem and solved it by disabling the Blackberry's wireless sync with the Exchange server. I had thought that information created in Daylite (or omni) that synced to ical and then to BES would update the BES info, and thence down to Microsoft Lookout via Exchange, but it never seemed to happen right and the same kind of resyncing occurred as you experienced. I had to settle for my BB tasks and calendar being updated only by missing sync rather than by the exchange server. I've had my BB set up this way when I switched from daylite to omnifocus and haven't had an occurance of the problem you describe.