For the past couple of days I have been having a problem where my PC mouse cursor has been having the tendency of starting to move by itself to the bottom of my screen and it seems to go away for a little bit after letting the PC power down for the night but it seems that not 10 minutes into getting into the desktop the mouse just starts acting up like that. The unit is a Logitech Cordless Wave Pro and it has been fine since March when I got it as a present for my birthday. So anyone have any idea what could be wrong with the darn thing?