Sorry, I did not read your post close enough, it sounds like it is entering all your dates twice. I had a similar problem with Pocketmac. It does the same thing. The solution might be the same for missing sync. I think it is because of "iSync" on your computer which automatically syncs entourage with ical. I use Entourage, and it was syncing both Entourage and ical, so everything was appearing twice. I went into my ical and turned all the syncing off, as well as sync services and turned off all syncing. I unchecked anything under ical in pocket mac, then I deleted all the items on my calendar in the blackberry, and re-synced it. It then just synced with Entourage, and did not double everything. Hope this will work for Missing Sync!