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The author is probably right that there is an issue somewhere, but since I've been using SteerMouse (http://plentycom.jp/en/steermouse/) I haven't had any mouse annoyances anymore.

Not sure what it changed though; I thought it was the acceleration curve but for all I know it could be replacing the entire OS X mouse driver, laggy code and all.

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The author says that the bug is in the OS X kernel, not in any driver, so if he's right, changing a driver would not fix it, which is a pity.

I've also had Windows friends complain about mouse lag on my OS X. I've always thought it was due to the different acceleration curves, but disabling OS X mouse acceleration never seemed to fix it.

The OS X kernel is largely a collection of pluggable extensions. It's likely an extension could take the place of the default mouse driver. In fact, the source might even be available to get down to the real issue.

Me too. I was very unhappy with the way the mouse felt on OS X. I even considered switching. Then I found SteerMouse, and now I'm a happy camper. Highly recommended.

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