Zeph, you still have a warranty on the mouse.... so just see if Logitech want to RMA it for ya
at the moment I'm gaming with a Logitech Media 600 Keyboard and a
M705 wireless mouse (see link on the mouse) which is pretty nice (have had it since xmas and battery is still going to last for another 3 years) just had to get used to it after 4 years on a G5.