On my Powermac G5, if I start it up from being off, the bluetooth keyboard wont pair up with it. Neither can I connect it after using a USB keyboard. It works sometimes but not others. The keyboard I am using (or attempting to use) is the Apple Bluetooth one. My mouse is also behaving erratically whether it is my magic mouse or even now my Logitech MX Revolution. Any insight on these problems is greatly appreciated!