I have a 12" PowerBook G4 (the very last revision in 2006) and I've never had issues with the bluetooth before (although I've only ever used it to move a few pictures from my phone to my laptop occasionally). This week, I bought a wireless mighty mouse and connected it no problem. Yesterday was the first day I used it and it worked like a champ all day. Today, I was using it and in the middle of moving it around, it just stopped responding. My trackpad still works fine, but the cursor stops moving with the mouse, the clicker doesn't work, etc. When I turn the mouse off for a minute and then turn it back on, it works for a few minutes and then quits again. The first thing I tried was to swap batteries, but that didn't help. Neither did a restart. What can I do? Is my bluetooth card broken? Is my mouse just junk? I bought it "open box". Should I request a refund or is there something I'm doing wrong or something I can do to fix it?