I'm now the proud owner of a Magic Mouse. The Sherman Oaks store was out of them (they're the worst Apple Store ever), and I got the last one at The Grove. I got it home and got it "paired" but none of the scrolling functions would work and I couldn't even get the screen in preferences to allow me to set it up. I then read the little mini-instruction booklet and it said to check for software updates, so I did and there was indeed and update for the wireless mouse. I did it, restarted, and then started over again and this time everything worked like a charm, I set my preferences and this thing works like a dream.