New SD card sorted it, a lot of messing about as i have t a clue about pi and unixy stuff , but got it working. it’s pretty easy to setup (now i know what to do). one config file to edit to add a line to fire up a browser in kiosk mode with the scorbit webpage and a few settings in the gui to set - like wi-fi credentials and no screen blanking etc. it takes a while to boot and then to cache the web page content but once that’s done it displays ok.
really pleased i’ve successfully popped my Raspberry Pi cherry!