Yesterday, it was the first time I have ever used a Mac (YAY). I went to a store called NextByte in Adelaide, Australia and played around with all the Mac's . Anyway, to the point... the mouses seemed very unresponsive. When I wanted them to just go to the top of the window to click a button, it was difficult to actually get on top of the button, it staggered a lot. It sorta felt like a ball mouse that had a lot of crap in the ball. I originally thought it was because of a lack of mouse pad, looked down and it was there... I decided to use a peice of paper (which I know works great as a mouse pad as I use it currently for my crappy lil optical), felt the same. My $10.00 Logitech mouse performed better then them. So yeah, are they really like that?