Thanks, Granitegal. I was in IT support for 20 odd years, so know about users! LOL
Had tried several times over the last few days (including cleaning etc.), to no avail, but you must have the magic esp touch . . . when I switched on just now the message said cannot identify with cartridge, so I opened the door and the cartridges were aligned, but the eject handle wouldn't work so I shut the door and backed out and it showed an "x", I was then able to change it!
Thanks for your help.
