Nav element CSS problem

Howdy.

When viewing my site – https://www.royaltech.net at 1024 width, you’ll notice that only 6 nav items display and the 7th is wrapping below the last item, causing a black box to appear blocking out the ‘typefaces’ text.

I’m trying to make it wider, and would particularly like it to right align with the right edge of the 3rd column.

Any takes?

Thanks