Thanks for the links Looki!
Actually both ExtensionView (version 2.15 of MMF2) and Extension Manager of CF 2.5, have older versions of the surface object and unfortunately, not only of that object. Besides, there are several objects that, once downloaded, do not work. The same surface (ver. 1.5) of ExtensionView after downloading is only 25K and not works. They do not work eg OpenAL (25k), Shadow Object (25K), PhizixBox2D (26k), etc..
But who must to update these objects? I do something wrong?
Returning to surface: the Help in MMF2 works now, does not work instead in CF 2.5 (even if the file exists in its folder).
I thought there was an example because I may have misinterpreted the Help sentence ( "If you wish to learn more about Surface's features, please refer to the examples in the Examples folder of your installation or continue to the Concepts section of the documentation.").
The rotation now works. It does not work the selection of color if the object surface is not positioned in the upper left (I attach the sample file created with MMF2) .
You can have a look?
Thank you.
Enrico