Have a 3660 phone from T-Mobile. The Bluetooth interface keeps "Freezing." If I am using GPRS, it will functon fine for a random amount of time... Then the bluetooth stops responding. My laptop goes nuts - basically freezes and won't even "disconnect" without me forcing the bluetooth hardware off on the laptop. The phone still appears connected but won't respond. Bluetooth control panel can't even disable it; trying to turn it off results in the app closing fatally. Have to reboot phone to get Bluetooth back, only to have it happen again. It can happen within the first two minutes of being online, or it can be fine for hours... Very random. Have always seen thsi problem from day one, even after a full firmware reset and NO memory card installed. V4.57, 21-10-2003 NHL-8. T-Mobile locked.