Nav Bar Images are Cut Off!

[ProfAppleDotCom]

I've been fixing up a site: http://mctaggartlaw.com and I noticed the Navbar looks good when you hover your mouse over it, but when you move your cursor away, the buttons are all cut off. Any way to expand the images on the navbar to even out?

BTW when I say images, I can also mean background.:laugh:

And is there anyway to get the header to lap over on the right side like it does on the left side?