when you sync with outlook..... outlook ask for permission to access its contacts & calender.. & you can choose to allow access for 1 hr or 15mins etc....
i have noticed that this permission dialog sometimes goes into a corner & gets hidden behing some other app, if your multitalking at that time.
i have downloaded a a very usefull & tiny app caller EXPRESS CLICK YES from ContextMagic.com
it automatically gives permission, by clicking the yes button whnever it comes it, even if its behing any other app.
Also i had upgraded to outlook 2007 & it was buggy & slow copared to 2003, so i'm back to 2003.
i think this issue is more to do with 2007 bugs rather than BB desktop software.
anyways its good that its sorted out..