Hi,
I appreciate your help. No matter what I did, I could not change the width. I have modified the width in every one of these files without success:
-includes/templates/template_default/css/stylesheet.css;
-includes/templates/classic/css/stylesheet.css; and
-includes/templates/KQ/css/stylesheet.css.

#mainWrapper {
background-color: #ffffff;
text-align: left;
width: 960px;
/* width: 750px;*/
vertical-align: top;
border: 1px solid #9a9a9a;

What was wrong?

Thanks