that's usually because your columns are too wide.. Try working with firebug, you can use the "inspect" tool and you'll see the bounding boxes very quickly. You'll probably see that they are too big. But that's just theory.

A link does by the work much better than a screenshot - it would allow us to see what you actually did...

Thanks for responding Remo! Here is more info, I have added the Blog addon. When you clicked on the Home link the right sidebar looks right but when you click on the Blog link as you can see it is messed up. The white background is not extending for all the content. I replaced the original css from float: left; to float: justify; and the white background did cover all of the content. But it pushed the right sidebar down on the Home link as well. Like what it is doing now on the Blog Link.

Some information from the style.css

#header {
width: 910px;
height: 172px;
margin: 0 auto;
background: url(images/data-center.jpg) no-repeat left top;
}

#page {
width: 910px;
margin: 0 auto;
background: url(images/img03.jpg) no-repeat left top;


}

/* Content */

#content {
float: left;
width: 600px;
padding: 40px 0 0 20px;

}

http://concrete5.joealdeguer.com...

It seems to be ok now.. no?

Not when you click on the Blog link.

http://concrete5.joealdeguer.com/index.php/blog/...

There are a little trick when you have a float content.
add :
<div style="clear:both">&nbsp;</div>
just after the end of your div #content.

like this :

<div id="content">

<!-- your stuffs -->

</div>
<div style="clear:both">&nbsp;</div> <!-- to clean the float -->

try to add float:left to
.ccm-blog-blog-post-content and set a small width for it to be sure there's enough space..

I fixed it by starting from scratch. I reinstalled concrete5, then added the blog, then installed the theme. Making sure everything appeared correctly before changing the header image and background. Now it works the way I want it. I learned something new again today!

http://theme.joealdeguer.com/

Anyway thanks for all of your help guys!