When dragging to move a window, scrollbar, or highlight text, it only remains "grabbed" for a fraction of a second to a few seconds, releasing too early. I also have noticed that when trying to click something, it is many times interpretted as two clicks. Such as starting two instances of Firefox or my terminal instead of one. Movement is fine and scrollwheel is dandy. This has only cropped up recently. Is there anything known to cause this problem?