I think this is a Windows setting that I can't find, but clicking on a mouse button causes my browser to go loco. This happens in IE and Firefox, and it seems to be happening in other applications as well, which is why I think it's a Windows issue. A single-click sometimes causes a double-click to happen, or hovering over a link or button will automatically click on that link or button. Single-clicking over a group of words will highlight the entire paragraph. I looked at the mouse settings in the Control Panel, but I think I'm missing something.