I have an Audiovox 5600. I also have a bluetooth enabled laptop with Windows XP SP2 with Active Sync 4.0. I also have Motorola HS850 bluetooth headset. I have been able sync my Phone with my laptop. The problem I have is that when I use the headset, everything goes to crap, and I have to uninstall my headset to get any sync to occur. I am using COM port 6 for the Active Sync and I think com port seven for the headset, but am still having problems.

Any thoughts?

Thanks in advance