Boxed vs Expanded layout. Need help.

Hi,
When I built my site, I set the layout to “boxed” mode. Yesterday, I returned to my site only to find that the layout has reverted to “expanded” mode. When I try to put it back to normal, it doesn’t change.

Apparently this is only happening on Chrome. I don’t know what it looks like on Firefox, but it looks good on Safari.

I haven’t made any changes since I built the first draft.
Here is the url – http://ridpropescontrol.com

I’d appreciate any suggestions you may have to return the site to the boxed setting.

Thanks

Cameron