I am looking everywhere for help with no avail. I have the Rezound and a Broadcom USB bluetooth device that was version 2.1 and I just downloaded software to upgrade to 3.0, which I have plugged into a Toshiba Satellite laptop running Windows 7 32bit. I have been able to sync my prior HTC Incredible to it, and I am able to sync my Samsung Galaxy Tab 10.1 to it. I can sync my Rezound to my car and my HP laptop at work, it is just this device that I can't connect to. Both the phone and the laptop recognize the other exists, but they pc gives a message that says ""Adding this device failed because of an authentification error. This might be due to the use of an incorrect pairing code. Try using the correct pairing code for the device". Meanwhile the phone says "the pairing was rejected by the PC." The thing is that neither the pc or the phone asks me for a passkey or gives me the opportunity to enter one on either device. I have spoken to HTC support and they say it is an incompatibility issue with Broadcom. Broadcom has no one to talk to, and I have downloaded the latest drivers, but cannot find anything specifically related to the Rezound and any incompatibility issues. I have also tried downloading different bluetooth apps from the market to see if they would more compatible but have not yet succeeded. Anyone have any ideas or suggestions?