Title: Not Accurate
Product review: I have used a trackball since 1991. I got this product because I got a new computer and wanted something else new. I like the button options and the wheel that can be accellerated. However, these pros do not compensate for the poor accuracy. As I had read in other reviews, the ball will stick unless you press hard on it sometimes. It's hard to explain, but there are times when your thumb glides across the ball without the ball moving. So you have to press harder, but the bushings (little pins that support the ball) will hold the ball in place. The result is jerky performance. I reconnected a couple of old Logitech trackballs and could not reproduce this effect. Yes, I do regularly clean the Microsoft ball as well.It isn't the optics or anything electronic, it is simply the makeup of the ball and bushing.Good LuckAJ
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