I installed a new Trackmanmarble mouse that points...that's it. When I called "support" I was first sent to sales, and Magazine links....but no real people. I had the same model mouse forever and loved it, that's why I bought 2 (1 just died, 1 just hooked up). Heck! They're based in the Switzerland, I even tried auf Deutsch. No luck. No people, just regurgitated mag links.