Dead space to the right of my CSS Image Gallery??

[asteeber]

1) Script Title: CSS Image Gallery

2) Script URL (on DD): http://www.dynamicdrive.com/style/csslibrary/item/css-image-gallery/

3) Describe problem:
I created a page incorporating the CSS Image Gallery, and once the large pictures were functioning, I ended up with a large amount of dead area on the right side of my webpage. There is nothing there, and I can't for the life of me find out what is making the page so wide. Everything I have set is for 775 wide. Here is a link if you need a visual; http://www.sandstoneairnoise.com/services.html

Any ideas? None of my other pages have this problem, just the one with this gallery.

I combed through the css file, and the page scripting, and can't figure it out? Can someone point out what I'm missing here? :(

Thanks in advance!
~Lex