Hi. I recently started having problem with my mouse. the right click would not work. I also noticed when I went to the dock. The docks magnificent was stuck on the icon I brought the mouse down onto with that icons name. Moving the mouse left and right did not change it. I also noticed if I tried to drag an icon from one location to another, the icon did not drop into the new folder or position, it stayed stuck on the cursor. I first tried a reinstall using my time machine. then when the problem persisted a clean install but despite this the problem remained. Looking it up on google I found many with the same issues that were either unresolved, or got resolved but when I followed the same procedure my issues still remained or they found their problem was down to something I do not have like a piece of software or a track pad. I have tried a Pram Reset Changing the settings having downloaded software that lets you set the mouse keys, booting into guest account. I believe this is a hardware issue of some sort and not a software issue due to the clean install and also because when I booted into my separate hard drive that runs windows the same problem occurred. But I am still holding onto the hope there is something I can do to fi this without taking it for repairs. I run a 2009 Mac Pro (Tower not laptop) and OS 10.8.3 Any help offered would be most appreciated.