Adding item to the menu (GNOME)]

[pinco]

Hi,
I would like to thank all people who kindly helped me to understand how 
to modify the menus in GNOME.

I succeeded to add an item in the Ulitility menu putting in a .desktop 
the following:

 >Categories=GNOME;Application;Utility;X-Red-Hat-Base;

But I fail to add an item to the Internet menu 
(Categories=GNOME;Application;Internet;X-Red-Hat-Base;)

Which mistake do I do?

Thanks again,
Nino