I didn't see anything about your trying to clean the old mouse. Just got through cleaning DW's mouse - one of the rollers had picked up lint, and, like yours, would not go in one direction. Removing the lint restored the operation. Also, balls get dirty and can benefit from cleaning.
I admit it is a bit early for the new one to have picked up lint.
Question always is in these cases: is the problem between the ball and the roller or is it more fundamental? This can be checked by removing the ball and rolling the roller with the finger. I don't know of any way of curing unreliable behavior seen in this case. I expect your new one will fail this test. Your old one might not.
If your new one does pass the finger test, and it is as clean as one would expect, check the ball, particularly for a ridge. I've had some problems with them.
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Date: 2007-10-27 06:46 pm (UTC)I admit it is a bit early for the new one to have picked up lint.
Question always is in these cases: is the problem between the ball and the roller or is it more fundamental? This can be checked by removing the ball and rolling the roller with the finger. I don't know of any way of curing unreliable behavior seen in this case. I expect your new one will fail this test. Your old one might not.
If your new one does pass the finger test, and it is as clean as one would expect, check the ball, particularly for a ridge. I've had some problems with them.