Menu appearing full screen width

Hi

Have just purchased the CSS3 MegaMenu but have been using your older MegaMenu for years with no problems. However, the CSS3 MegaMenu appears full screen width and breaks out alignment, so instead of having;

LOGO (left) > Menu (right) > Login (right)

I get

LOGO (left) > Login (right)
Menu (full width of screen)

Hope that makes sense as your forum will not allow 'attaching images' and I have no where to link to. Essentially I'm trying to get the menu to only be the width it needs not full width (unless of course tablet or phone) and to sit inline with the logo and login.

The site is sandboxed on my dev server

Many thanks

Hi

I have sent an email with the details for you, this also gives the live site address so you can see what I'm trying to achieve. The live site uses MegaMenu version 3.0.3

Regards