When I click the Reply button here,
It is bad enough to work through the question in Spanish and to guess the issue and the solution, but worse to be unable to give the help.
Somehow I am back to being unable to answer in that thread again.
For a while I have tried in vain to post a reply to Claudio, and alternatively to the OP.
The OP has given a rather strange answer to Carlos.
Thank you for looking into this, John.
I believe there is something rather strange going on in Firefox:
First I was unable to post so I posted here;
then I was able to, and posted here;
then I was unable to again, and posted here again, and found out that I was unable to post in another thread, to;
then I opened a new Firefox window and was able to post in both threads.
I am still unable to post in the original Firefox window which has 8 tabs open.
I believe I shall just have to close it.