Originally Posted by Cyclops
I'm having a similar issue with DM 4.3 as well, I noticed that if I don't sync my calendar (Outlook 2007) the address book, memo pad and task, sync without a problem.
Well...I found that 4.2 by itself was "working" again... but as before, I noticed that multiple instances of BB device manager were winding up in task manager. Earlier, when I installed 4.3 on top of 4.2, this stopped happening. So I finally gave in and reinstalled 4.3 on top of 4.2. With this config, everything syncs, no multiple copies of BB device manager.
It seems that my best config is the hybrid with 4.3 on top of 4.2. I'll keep this for now.
Also seriously following up the leads Rivviepop suggested re use of SyncML, a SyncML server. This would let you (us) do OTA sync of tasks, calendar and address book, and let BIS handle the email delivery.