usb mouse not working with Yosemite, help!
Just installed Yosemite on my Mac mini (Late 2012, 2.3 GHz Intel Core i&, 4GB memory). Yosemite appears to have installed correctly, but my USB logitech mouse is no longer working. I've been using this wireless Logitech mouse+keyboard combo for years without problems. The model number is CE0682. The combo has a receiver which plugs into a single USB port on the Mac mini, and pairs with both a wireless keyboard + wireless mouse. The keyboard works fine but the mouse doesn't respond at all. I've tried replacing the batteries, even though they reported as good, and tried repairing, even though the keyboard working indicates there was no need for it. When I unplug and replug the receiver, it is clear that Yosemite recognizes that I've removed and replugged in a mouse. (I was able to open the System Preferences -> Mouse panel by using Screen Sharing from a laptop running Yosemite, and use a remote mouse that way. With the Mouse system preference page open, when I unplug and replug in the mouse, the preference page clearly indicates there is no mouse attached then that there is a mouse attached.) I've also tried plugging in the receiver to a Mac laptop running Yosemite and again the keyboard works but the mouse doesn't.