I have a Logitech Dinovo Edge and a Logitech 470 Travel Mouse.. the keyboard has been working fine but Ive been having problems with the mouse.. I read about the Bluetooth Module and the BT,1,2,3 wires inside the mac pro and the possibility of a wire being labeled wrong.. Unless the module is on the back of the motherboard, I havent seen any wire that says BT.. If the tray where the ram slots are is removed there 2 tiny wires in the lower left that says 1 and 3.. no other connector for BT so I dont think thats the location.. where is this Bluetooth Module located? If I cant get this to work correctly whats the best dongle to get?