Hello UK Bob,
I use the international version myself, and all buttons are present.
So I see no need to install the American version.
Hoever I would download the programme again from the
Limewire site , and use that to do a clean install, becouse perhaps your installer might have become corupted.
Now I am not really Limewire savvy, so perhaps one of the regular trouble shooters can shine a light on what to eventually remove manually to make sure no bad settings are kept.
I'll try to draw their atention, becouse so far they have kept out of this thread.
RaaF