[KurtVeloc]

Based on your code, without seeing the site it looks like you have the css calling the hover image to the background of your nav buttons and not replacing the displayed image.

Here is what I do for my nav bar:

<A    onmouseover="window.status='Customer Service'; document.customer.src='images/topbanner/t2/customer_off.jpg'; return true; "                   onmouseout="window.status=''; document.customer.src='images/topbanner/t2/customer_ovr.jpg'; return true;"                   href="http://www.velocityartanddesign.com/help.php"><IMG                   id=customer height=19 src="images/topbanner/t2/customer_ovr.jpg"                   width=141 border=0 name=customer></A>