Just an FYI, if Logitech does do an RMA they may not send you the MX1000. If they still have any of the MX1000 in stock you will get one but if they don't, they will send you a comparable model. I have the MX1000 but haven't had any problems with it at all. I'd do as proxops-pete suggested and check out the Logitech support site. They have been known to help at times.