Thanks Ron. You are correct. I did have it confused with the V2 upgrade so I re-posted it under a new title upgrading the Z110 firmware to 1.001000 but you answered my question anyway so thank you very much. I do actually have a minor issue where sometimes the XM stations cannot be changed using the buttons at the bottom or on the screen but if you touch the list option on the screen it unfreezes and list all stations and then returns to normal. The other way to unfreeze it is to turn it off then on again (reboot).