I have a really strange problem at http://www.hattricknews.org/. The navigation (category listing at the top with the gray background that is) looks perfectly stretched out when logged in, but is cramping up when not logged in. If you just look at it you'll get what I mean with cramped up. It's simply just on the left while it's being stretched all the way out to the right (in one line instead of being double) when you're logged in.
The code for the listing looks like this (with the Custom Search Engine also in there)
I don't know what you can do without the CSS specific, but I'm getting tired of this problem, any help is appreciated.