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Title: Rapid cursor jump problem
Review: A few other reviewers mentioned that the cursor sometimes takes wild jumps using this mouse. I had this problem too, but using the mouse on top of a blank sheet of paper solved it. As for the shape and feel of the mouse, one thing you can't tell from the pictures is that there is a contoured region at the top of the handle in front designed for your index finger. My hand is right on the border of the 3.5" cutoff between the suggested sizes. I bought the large version, and find this grip contour a little high up for my taste. I don't know whether it would be better with the medium version. Otherwise I find the grip size comfortable. The USB->PS/2 converter works fine, too. I run my mouse into a KVM switch using the converter, and it works on all my machines (Mac and Linux). This looked like the best ergonomic alternative to a standard mouse that I saw, and I'm happy I bought it.
