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Title: Best Mouse in 20 years on computers
Review: I LOVE the Kensington Expert Mouse. I tried a lot of other trackball mice and every one of them caused some pain in my hand or wrist. I use this mouse for 5-15 hours a day and have no problems.I just bought another Expert Mouse because I thought it was wearing out. It turns out the problem was the program, not the mouse. So I'll use my perfectly good 2 1/2 year old mouse for my backup computer.I've been using an ergo beads pad to brace my wrist but this time, I'm trying the support that's provided with the mouse. So far it's working fine.I have purchased these since they weren't optical. I have to admit, the models before optical wore out within a year. Once Kensington replaced one and I bought two others...one a year. Comfort is very important to me; at the same time I'm glad they improved the design!I keep compressed air next to the mouse and every couple of days lift out the trackball and blow away any lint that collected on the knobs that hold the ball.
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