Ok, everything was working fine and then my PB wouldn't boot up. I try it 7 times and still got nothing. So I cleaned my drive and reinstalled 10.3.2, now my mouse is still paired to my old setup. How do I reset that?
Have you tried paring it with Bluetooth Setup Assistant? Or used the Bluetooth preference in System Prefs? Or tried the Keyboard and Mouse Prefs -> Bluetooth?