Mysterious double image

[graphixdizzy]

Hi. Developing my first Joomla site. Creating a rollover on the home page. For some reason, image is doubling up to the top left. You will see a button titled "Today's Talking point".There are 2 of them.The bottom right one is working correctly.If you hold your cursor over the bottom right one you will see the roll over reaction.Why is there a second image on the top left?????Here is the code used:HTML:<div id="mindMapTalking"><a id="mindMapTalking" href="index.php?option=com_content&view=article&catid=8&id=8" _mce_href="index.php?option=com_content&view=article&catid=8&id=8" ></a></div><!--mindMapTalking-->CSS:#mindMapTalking { position:absolute; z-index:2; margin-top: 155px; margin-left: 125px; display: block; width: 183px; height: 167px; background: url(http://www.commonsenseprivacy.com/image ... alking.png);}#mindMapTalking :hover { background-position: 0 -167px;}If you view source and use Edit CSS in Firefox, you can see all the code.What the heck is making that image appear twice?Thanx.