I have having an issue with a css only drop down menu in ie6. With the code bellow you will be able to clearly see that there is an additional 1 pixel of space inside of the UL tag on the bottom of the images. That is my problem I need for that single pixel of space to be gone. I have tried setting margins paddings heights, negative margins and paddings all seem to fail.


Code is compressed because IE6 also likes to add additional padding for whitespace between elements, the li tags and closing ul have been compressed to circumvent this.
Code:
<html>
<head>
<style type="text/css">
body { background-color:black;
a { text-decoration:none; }
img { border:0px; }

.menu1{ float:left;width:100%;font-family:verdana, arial, sans-serif;font-size:11px;background-color:white; }
ul.menu1, ul.menu1 ul{ padding:0;margin:0;list-style-type:none; }
ul.menu1 li{ float:left;position:relative;height:35px;padding:0px;margin:0px;border:0px; }
ul.menu1 li:hover{ width:auto; }

/* do not fbling edit bellow here you will break stuff */
ul.menu1 li a.menu1two:hover{ border-color:#fff;border-width:0px; }
ul.menu1 li ul{ display:none; }
/* specific to non IE browsers */
ul.menu1 li:hover ul{ display:block;position:absolute;top:31px;margin-top:1px;left:-170px;z-index:1000; }
/* specific to IE5.5 and IE6 browsers */
ul.menu1 li a:hover ul{ display:block;position:absolute;top:32px;left:-170px;z-index:1000; }


li#cont{ background-color:gray;width:595px;height:380px;padding:0 1px 1px 1px;border:8px white solid;border-top-width:0px; }


div.dd_cats div{ background-image:url('/images/cats.png');float:left;margin:1px 1px 15px 0px;width:76px;height:81px;padding:1px 5px 8px 5px;text-align:center; }
div.dd_cats div a{ text-decoration:none;font-family:Verdana;font-size:10pt;color:#2e2e2e; }
div.dd_cats div a img{ height:66px;width:76px;border:0px;margin-bottom:4px; }
div.dd_links a{ font-family:Verdana;font-size:10pt;color:#336699; }

</style>
</head>
<body>
<ul class="menu1"><li><a href="index.htm"><img src="http://www.usbmemorydirect.com/images/home_a.gif" alt="Home" /></a></li><li><a class="menu1two" href="/products.htm"><img src="http://www.usbmemorydirect.com/images/products.gif" alt="Products" /><!--[if IE 7]><!--></a><!--<![endif]--><!--[if lte IE 6]><table cellpadding="0" cellspacing="0" style="margin:0px;padding:0px;"><tr><td><![endif]--><ul><li id="cont"><!--[if lte IE 6]><a href="#"><![endif]-->
<div style="width:567px;height:352px;background-color:#ddd;text-align:left;padding:14px;">
	 <div><img src="images/categories.gif" alt="USB Flash Drive Categories" /></div>
	 <div class="dd_cats" style="margin:4px 0px 0px 15px;">
	  <div style="background-position:0 -25px;"><a href="/categories/topsellers.htm"><img src="images/dot.gif" alt="" /><br />Top Sellers</a></div>
	  <div style="background-position:-86px -25px;"><a href="/categories/rushproduction.htm"><img src="images/dot.gif" alt="" /><br />Rush</a></div>
	  <div style="background-position:-172px -25px;"><a href="/categories/swivel.htm"><img src="images/dot.gif" alt="" /><br />Swivel</a></div>
	  <div style="background-position:-258px -25px;"><a href="/categories/usbband.htm"><img src="images/dot.gif" alt="" /><br />Wristbands</a></div>
	  <div style="background-position:-344px -25px;"><a href="/categories/usbcards.htm"><img src="images/dot.gif" alt="" /><br />Cards</a></div>
	  <div style="background-position:-430px -25px;"><a href="/categories/plastic.htm"><img src="images/dot.gif" alt="" /><br />Plastic</a></div>
	  <div style="background-position:0 75px;"><a href="/categories/metal.htm"><img src="images/dot.gif" alt="" /><br />Metal</a></div>
	  <div style="background-position:-86px 75px;"><a href="/categories/wood.htm"><img src="images/dot.gif" alt="" /><br />Wooden</a></div>
	  <div style="background-position:-172px 75px;"><a href="/categories/leather.htm"><img src="images/dot.gif" alt="" /><br />Leather</a></div>
	  <div style="background-position:-258px 75px;"><a href="/categories/usbpens.htm"><img src="images/dot.gif" alt="" /><br />Pen Laser</a></div>
	  <div style="background-position:-344px 75px;"><a href="/categories/unique.htm"><img src="images/dot.gif" alt="" /><br />Unique</a></div>
	  <div style="background-position:-430px 75px;"><a href="/custshapeusb.htm"><img src="images/dot.gif" alt="" /><br />Custom</a></div>
	 </div>
	 <div style="float:left;width:283px;">
	  <div><img src="images/featured.gif" alt="USB Flash Drive Categories" /></div>
	  <div class="dd_cats" style="margin:4px 0px 0px 10px;">
	   <div style="background-image:url('/images/products.png');background-position:0 0;"><a href="/products/"><img src="images/dot.gif" alt="" /><br />Top Sellers</a></div>
	   <div style="background-image:url('/images/products.png');background-position:-86px 0;"><a href="/products/"><img src="images/dot.gif" alt="" /><br />Rush</a></div>
	   <div style="background-image:url('/images/products.png');background-position:-172px 0;"><a href="/products/"><img src="images/dot.gif" alt="" /><br />Swivel</a></div>
	  </div>
	 </div>
	 <div class="dd_links" style="float:left;width:283px;">
	  <div><img src="images/additional.gif" alt="USB Flash Drive Categories" />
	   <div style="float:left;width:105px;margin-left:10px;">
	    <a href="/categories/compact.htm">Compact</a><br />
	    <a href="/accessories.htm?lanyards=yes#lanyards">Lanyards</a><br />
	    <a href="/categories/ecogreen.htm">Eco Friendly</a><br />
	    <a href="/customcolors.htm">Custom Colors</a>
	   </div>
	   <div style="float:left;width:50px;margin-left:10px;">
	    <a href="/mp4.htm">MP3</a><br />
	    <a href="/mp3.htm">MP4</a><br />
	    <a href="/categories/clips.htm">Clips</a>
	   </div>
	   <div style="float:left;width:96px;margin-left:10px;">
	    <a href="/services.htm">Services</a><br />
	    <a href="/packaging.htm">Packaging</a><br />
	    <a href="/accessories.htm">Accessories</a>
	    <a href="/portableapps.htm">Portable Apps</a>
	   </div>
	  </div>
	 </div>
	</div>
	<!--[if lte IE 6]></a><![endif]-->
	</li>
	</ul>
<!--[if lte IE 6]></td></tr></table></a><![endif]--></li><li><a href="samples.htm"><img src="http://www.usbmemorydirect.com/images/samples.gif" alt="Samples" /></a></li><li><a href="testimonials.htm"><img src="http://www.usbmemorydirect.com/images/testimonials.gif" alt="Testimonials" /></a></li><li><a href="resellers.htm"><img src="http://www.usbmemorydirect.com/images/resellers.gif" alt="Reseller" /></a></li><li><a href="contact.htm"><img src="http://www.usbmemorydirect.com/images/contact.gif" alt="Contact" /></a></li><li><a href="about.htm"><img src="http://www.usbmemorydirect.com/images/about.gif" alt="About" /></a></li></ul>
</body>
</html>
Unfortunately we cannot ignore our user IE6 user base as they make up 30-35% of all views

Thank you for your help
-Nick