My mouse keeps freezing on the screen every once in a while. Then after a few seconds its fine, then it freezes again and then it's fine. And eventually it freezes up completely and I have to restart my Laptop. I've scanned for viruses, re-installed the mouse and tried a number of other things without luck. I am using XP and have a MX518 mouse. I heard that this could damage my motherboard??? I'm not that computer savy and I need some help.