GK, re the Genius, I've just discovered something. On my iPad the crossword does not display at all. On my ancient PC, which has never been 'upgraded to a more modern browser' it appears no bother every month, which I use because I can print it from there. I know that is no help but it shows that it is not our fault but is a techie problem that the Guardian has. Although I have never tried to submit them, just do them for fun, I will try this time just to see if it will work.