It appears that there may be a compatibility issue between some iterations of Apple mice and certain portable models. MacFixIt reader J. Strauss writes "I have an iBook 12" dual USB, and a Titanium ...

Rosemary Brown describes a problem noted by a few other MacFixIt readers, where a UPS (uninterruptable power supply) seems to "hog" the chain, and produce strange problems for the keyboard and mouse. ...

First of all, restart your computer and see if the issue is fixed or not. If the problem was occurring due to a minor glitch, it will be fixed automatically after restarting your computer. Also, ...

I have a problem with USB 3 and am out of ideas. I have a USB 3.1 hub with a bunch of devices plugged into it including my keyboard. When I copy files from the laptop to an SD card (even at USB 2 ...