Mark, Peter,

As Peter said, I guess I have to add a Web Content Form, however I see
different things in different solutions that I have.

1-
In a previous project I see the Add New Item... with no submenus  when I
right-click on my solution.
In this case I can add a Web Form in the dialog where the visual studio
template is and at the bottom I see the check box that said "Select Master
Page".
I have no problem here.

2-
In another solution I see a menu item called Add... which has a submenu that
has the "New Item...", "Existing Item..." etc..
in this situation I have to add a Web Content Form so to get the option to
select a master page but No check box at the bottom.

I don't know why the difference.  Is it old and new templates?

Thanks for all your help.

Lit