Great Mouse

All in all this is an excellent mouse for the money. It performs well on almost any surface- with the exception of glass. I often have this mouse hooked up to the USB port on my laptop and am using it on the arm of a chair, or on my knee. Ive even been standing by my computer showing people something and been using it on my stomach or hand. It still works great. The primary connection is USB, so you get great response. There is also an adapter so that you can step it down to a PS/2 port though. I've only had one minor problem with it. Every once in a while the cursor seems to get stuck. Ill move it offscreen somewhere and it will stop responding, it simply stalls where it is. This problem only lasts a few seconds though, then it is back to normal. I suspect this is something to do with the mouse drivers. Set up is easy. Windows XP automatically found drivers for it (but you can install the Logitech drivers for more control). Even Linux found drivers to support it (at least my version of Linux did). I've had a great experience with this mouse.