u r in luck buddy. i used to handle logitech RMA. the procedure is quite simple. first u need to contact support via website at logitech.com. fill the form, then they'll respond to you, telling where can u send the mouse. then u just print the reply they give, bring it to any address they state there. mind u, there will be no on-spot replacement as your item is over 1 year. u might have to wait atleast a week. but the good thing is, u'll get a brand new mouse. logitech is very caring about their customer. they'll never repair it.