I updated my phone to the 2.1 version when it came out, then just recently got a "pop up" notification on my phone to upgrade to 2.1 update1. Immediately afterwards, my phone doesn't recognize the same bluetooth headset I had prior to the update (Plantronics 975). I have the bluetooth enabled on my phone, click "make discoverable" then when I search for bluetooth devices, it doesn't pull any option up. My current phone info (if needed) Firmware version: 2.1-update1 Baseband version: S:M900.8.0S.DE03 Kernel version: 2.6.29 Build number: ECLAIR.DI06 Would it harm my phone to go back to the "original" 2.1 update I had in the 1st place? Any advice or suggestions greatly appreciated!