Hi, I once bought a Targus mini mouse for my iBook and noticed that whenever I woke the iBook from sleep I would have to unplug the mouse then plug it in again to get it to work. When I played with a third party Macally mouse at a store I noticed it didn't do that and whenever the Mac Mini that it was attached to woke from sleep the mouse functioned fine. How do I know when I buy a mouse whether it will be fully compatible with a Mac? Is it a question of drivers, etc.? Thanks.