After installing any kind of bluetooth device on my 64 bit W7 RC "Devices and Printes" goes intoan endles cycle and unable to list any other relevant device.No error message given by the system.Removing bluetooth device solves the problem - properlist isbeing generated and appears inmediatelly. Should it be hardware or software problem?The bluetooth device otherwise workson a regular way with no problem.(the same hardver config under XP (32bit)runs just perfectly)