FluxBox: Can't add to menu

Have problem with the menu in FluxBox on SlackWare 13.1 on my desktop.
I simply can't add things to the menu, on my Laptop I do as follows:
Open a terminal, type

emacs ~/.fluxbox/menu

Then I add or remove the things I want to add or remove.

But on my desktop I can remove things, but I can't add them, when I save my menu file with

C+x C+s

But when I open the menu the things I have tried to add aren't there but the things I've wanted to remove is there not.
When I open the file again with:

emacs ~/.fluxbox/menu

The change are there but they don't work.
I get no error message no nothing - anyone who can help me?

Did you reload the config after editing it? Somewhere in the menu should be an entry "Reload config".

Yes I have...

Sorry for not mention that