Thanks for your reply.
I've read you troubleshooting pages, but those do not describe my problem.
I'm re-stating my originale problem again:
On one of my sites I cannot add a 2nd or 3rd form of this plugin.
While your same plugin (same version) works smoothly on other sites.
It is just that one site where it is not working
I've de-installed and re-installed the plugin already.
Also the one form I currently use, remains, even after un-installing and re-installing. So with a WP un-install, the form remains (contrary to what your troubleshooting pages tell me!).
Again, my problem is in the backend. I hover my mouse over "Form: 2"; my crusor changes in a little hand; I click and nothing happens.
Updating options works fine.
Any other thoughts?
I'm happy to give you an admin login so you can check for yourself.