background image problem

Hi Guys, this module works great by fixing the transparency problem of my logo but I'm having issues in handling background images. It corrects the transparency problem but the position of the image has shifted behind the text.

html:

<ul class="features1">
<li class="features1"><span class="banner_price">FREE</span> Domain Name for Life</li>
<li class="features1"><span class="banner_price">FREE</span> Set-up/No Hidden Charges</li>
<li class="features1">No Overselling</li>
<li class="features1">Huge Disk Space and Traffic</li>
<li class="features1">30 Day Money Back Guarantee</li>
</ul>

css:

ul.features1 {
	float: left;
	font-size: 18px;
	font-family: tahoma;
	list-style: none outside none;
	margin: 5px 20px 0 5px;
	padding: 0;
}

li.features1 {
	background: transparent url(../contrib_images/check_green.png); 
	background-position: left center;
    	background-repeat: no-repeat;
	color: #cce8ff;
	padding-left: 30px;
	
}

Your help is highly appreciated. Thanks.