I have a MacMice 'The Mouse BT' Bluetooth mouse. I have had it for over a year and used it with both a 12" PB and a Dell Inspiron and it worked flawlessly with both. I just got a Mac Mini and picked up an Apple Wireless Keyboard to pair with the Mini along with the mouse. The keyboard works great, no problems at all. The mouse keeps losing its connection, giving me the connection lost logo on the screen. I can re-establish the connection by turning the mouse off and back on and clicking until it responds. It will lose the connection randomly and quite often to the point that it is a big nuisance. I have called Applecare and they have walked me through the steps of resetting the PRAM as well unplugging everything from the Mini and rebooting, then reconnecting. I even replaced the batteries yesterday and that didn't help. Anyone have any ideas on what it might be before I have to take it to Apple and have them look at it. I don't want to do an archive and install, I don't see that as fixing it. I also am wary of taking it in, since I installed the 2GB RAM that is in it. Do I have to swap that back out for the 512 just to have someone at a store look at it?