Thank you again pieeater2015. I installed a brand new image and drove the dish manually back to "0" pointing south. Coordinates correct.
Manual search, single satellite, 0.8w Ku band. When I start the manual scan of 0.8w, it stays for ages on "scannIing: completed 0%, channels found 0" and nothing happens. The dish has however moved from "0"
If I go to "Signal finder" I find that the default satellite there is 19.2e and if I change it to 0.8w and try a manual search again the same thing happens.
I tried, just as a matter of curiosity, to do a manual search single satellite of 19.2e and again no channels found.
However, if I perform a Blind Scan of 0.8w it will find lots of transponders and hundreds of channels but on 19.2e!