Dragging icons problem

When I single click and try to move an icon on my desktop the program opens and I can't simply move the icon unless I try it several times. I do not have single click checked in folder options. The same thing happens for instance with Outlook, if I try to move the window by single clicking the top bar, the program will go to full screen and I cannot simply drag the window. This happens in every window. I have done a system restore, virus checks, double checked my settings, run scannow. I am about to do a reset but this is a last resort.

It was a mouse problem.