I am trying to repeat an image as the background and am calling it like this.

body{
background-color: #fff;
background-image:url(images/background_web.gif); background-repeat: repeat-x ;
padding: 0px;
margin: 0px;
z-index: 0;
}

However, for some reason, it will not produce the background gradient.

When I try and validate the main.css file in CSSEdit, it comes back with:
Value Error background (nullcolors.html#propdef-background) Parse Error.
It applies this Value Error with all background styles containing a url link.

Any ideas?

Thanks in advance.