Web Design Issue. Can't figure out what is causing the page to be too wide. Container issues?

In a nutshell, I'v been scratching my head for a couple of days to resolve this issue. I'v checked all my CSS, and it works correctly. This issue is only attached to this one page, as the other pages on the site don't go any further right than the header, border and footer.

Why does this issue only work for one page when the css is correct, and I'v checked the html page and it seems to be in order. I have the feeling it's a container error. On dreamweaver the issue doesn't occur, only when I view it on the web.