I have a Mac Pro and a Bluetooth Magic Mouse. After using the Magic Mouse for about a week, I decided to get another mouse. My other computer needs that mouse so now I'm back to using the Magic Mouse with the Mac Pro. Turning on the mouse and getting it discovered by the computer is fine. I'm using it as a regular mouse as I write this. However, I am unable to use any of the Magic features of the mouse. I can left click and right click on it, but that's it. No scrolling at all. Considering that I plan to upgrade to Lion tomorrow, that kind of sucks. I thought that there was a setting in Mouse Preferences, but when I go to the Mouse Preferences dialog and click the Set Up Bluetooth Mouse button, it says "No mouse found." Any ideas?