I was using Firefox. But actually it appears that the problem was in fact a Firefox problem rather than a problem with LAMS.
All day yesterday I kept on having the same problem, which eventually I managed to circumvent by saving and re-editing. After I clicked 're-edit' I could always use the editor with no problem. Today, however, everything was fine and I didn't need to save and re-edit to be able to use the editor. I suppose after having restarted my computer whatever was in memory and was causing the problem went away.
Thanks. Now I only need to solve the 'grouping' problem and I think I can get a nice sequence going.
Josep M.
Posted by Josep M. Fontana