phone unresponsive when over the air sync on? I think I nailed it down: when over the air synchronization is on the phone becomes unresponsive when dialing out, answering calls and sluggish in general. In case of dialing out I can hit dial out button, the number comes on the screen and I don't hear dial tone until someone answers. When I shut over the air sync down phone is back to normal. Any simiar experiences?