Has anyone noticed when using a mouse on a mac the tracking is really strange. i.e. when you try and move the pointer slowly acts all funny and moves EXTREMELY slow! It's hard to explain. But i've messed with all the preferences and I just can't get it as smooth as I have it on my PC.... also Does anyone have the Logitec Laser Mouse? I own one, and recently it's been wiggin out on me. It's my second one in a row. I love the way it feels and looks, and all the buttons, but I need a stable mouse.