CSS --- Firefox refuses to show background

[Verwijderd]

Hi, Im working on the website: www.trippletrouble.be .
In IE you see the footer as it should be, with a background-image in a div called "footer". But firefox only gives the text, without background.
In my local testing site i've replaced the url-image by a solid color, but even that doesn't show in firefox.

Anyone an idea or tip?

#footer{
/*background:url(../images/footer.jpg) no-repeat top left;*/ --> commented out for testing with solid color background:#009933;
width:553px;
margin:0;
padding-top:15px;
padding-left:12%;
text-align:center;
font-size:x-small;
color:#333;
height:37px;
}

[crisp]

Last time I checked this was a Dutch website, please try again in that language...