check the faq linked in my signature for info on how to get bt sync going. It requires Desktop Manager 4.1 (already out) and Handheld OS 4.1 (out for 7100i), as well as Windows XP with Service Pack 2, and a Windows "approved/certified" BT adapter (if you had to install drives, it isn't approved)--there's a list of approved USB BT adapters in my FAQ....Hope this helps.