Logitech sells some replacement receivers (usually $10 + S/H). Contact Logitech Sales at 800-231-7717 (US and Canada only), or see the Contact page. You can also E-mail Support.
If it is covered by the warranty: Less than 30 days since purchase, you need to exchange it where you got it. After 30 days, you would be covered under the 3 or 5 year warranty from Logitech. See here for RMA info.
-Richard L. Owens, author of the uberOptions mod for SetPoint. Unlock the options of your SetPoint-controlled device! mirror