hi i have a treo 650 unlocked gsm version running tomtom navigator 6 and a bluetooth reciever it pairs ok tomtom runs ok the problem is when i run it with the reciever to actually navigate somewere it locks on,then loses the signal for about 10 seconds then finds it again for about a minute then does the same again over and over again it just wont stay locked on to the signal.tried several recievers all the same any help please would be apreciated dont really want to go back to windows but i may have to........tnx