My grandparents bought a brand new iMac not too long ago, and i couldn't help but notice how jerky and un-smooth the mouse pointer of the bluetooth Mighty Mouse was onscreen. The pointer would go fast then slow then fast again in a matter of a fraction of a second. The extreme lack of precision and accuracy was very frustrating, and the only way to fix it was to ditch the mousepad and use the thing right on the tabletop. Now, a few months later, i am starting to have the same problem with MY bluetooth Apple mouse (not a mighty mouse though). My computer desk is made of glass, so getting rid of the mousepad is not really an effective solution for me, but i'm wondering if the mousepad is even the problem at all. Other mice work fine on it. My grandma and my computer both have Leopard on them; perhaps it is a software issue? Whatever it is, it's really driving me nuts! I really like using the wireless mouse, but the jerky pointer with a mind of its own really makes it impossible! Does anyone else have this problem or know of a way to fix it? Thanks a ton!