Seems lke a doofus question but...
Assuming the folder structure:
HtmlRoot = HTML file location
HtmlRoot/Images = Image location
HtmlRoot/Styles = CSS file location
The HTML file finds and loads the CSS using the syntax: link href="Styles/t1Body.css"
The HTML finds and loads images using the syntax src="images/SMLLOGO.jpg"
But I can not find the proper CSS syntax which instructs the HTML to look in the Images folder for a background image -- UNLESS both CSS and image file are in HtmlRoot.
I've tried: background-image: url("/Images/back.gif")
and I'm not sure what else.