Mona,
Thanks for your retry about the solver, no point for me if not compatible with 11. It seems that the web community does not find the object(s) to download. Today, the two work sheets from Mike Armstrong didn't download ... 2/3 days ago, 3 work sheets from James didn't download. There is another problem: the lost thread(s). Today, in the morning, there was a request from Mike Armstrong how to make *.gif from a Mathcad work sheet ... tonight: can't see that thread or request ... where is it gone ?
Thanks Mona for your contribution.
Jean