problem with H1 background in IE

Hey guys!
I have a question and couldn’t figure out the problem..

I have an H1, and need to attach to it an image. Not to hide the text from H1, but to show the logo padded at 500px from h1. In Firefox it is displayed, but in IE it is invisible. why?

Here is the html part:

[code=html]
<div id=”header”>
<h1>HILDA NEILY <span>online gallery</span></h1>
</div> <!– end of div: header –>
[/code]

and the css goes like this:

[CODE]
#header {
background: url(img/bg_top.jpg) no-repeat 0px 0px;}

#header h1 {
display: block;
font-family: “Times New Roman”, Georgia, Times, serif;
font-size: 26px;
color: #512708;
padding-top: 80px;
padding-left: 55px;
padding-bottom: 35px;
background: url(img/logo_hilda_neily.gif) no-repeat 500px 70px;}

#header h1 span {
font-family: “Times New Roman”, Georgia, Times, serif;
font-size: 15px;
color: #908D8D;
display: block;}
[/CODE]

any ideas? thx for ur time!

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