Many problems...
I've just bought a new Magic Mouse as I thought that my old one had problems with the click. Now the new one is playing around.
Specifics: I spend a lot of my time developing ASP.NET code using Visual Studio in VMWare 5. This has been fine and I've never noticed a problem with the mouse.
Upgrade to Mavericks and I now notice that the mouse does strangely intermittent selection behaviour; 9 times out of 10 it's fine, but then it'll do odd things such as selecting a whole paragraph, or selecting then de-selecting text. It's like the mouse switch is playing around.
Now I've bought a new mouse (at $90), it too seems to be playing up.
I've not noticed any mouse pointer issues. Firefox did stop scrolling whereas all other applications worked. This happened twice last week and hasn't happened since (I did a full reboot).
Has anyone else noticed this errant selection behaviour?