Background and pop up menu in ENCORE CS5

Hi everybody,

I have a problem.

I try to create a pop up BD menu from a preset found in Encore (cloud pop up menu)

If I change writtings on buttons, some red collision square appears.

Then, using photoshop I take all the backgrounds of all buttons to make an unique background image.

Now if i use this image as an object it disappears.

like this

If I use it as a button the red squares appear.

like this

The question is this.

How can I use a background for pop up menus?

thanks

I apologize for my english