IE9 hover image not working for DIV

We have the following

1) an HTML file
2) a CSS file
3) two image files, one blueish, one orangeish. See attached code.

Works in every browser except IE9

What on EARTH is going ON?

 
CSS:

div.menubutton
{
   background-image          : url('WebMenuWithBorderBG.png');
   height                    : 30px;
   width                     : 150px;
}

div.menubutton:hover
{
   background-image          : url('WebMenuWithBorderHoverBG.png');
   height                    : 30px;
   width                     : 150px;
}

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HTML:

<html>
<head>
  <link href="WTF.css" rel="stylesheet" type="text/css">
</head>
<body>

  <div id="M_Tasks" class="menubutton"></div>

</body>
</html>

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LVL 4
WernerVonBraunAsked:
Who is Participating?
 
WernerVonBraunConnect With a Mentor Author Commented:
Never mind, peeps. I found that adding a <!DOCTYPE tag to the top of the page solved the problem. It doesn't even matter which one you add; you could add this one:
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
or this one:
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">

It both works.

[shrug]
0
 
WernerVonBraunAuthor Commented:
Blue Image Blue Image
0
 
WernerVonBraunAuthor Commented:
Orange Image Orange Image
0
 
WernerVonBraunAuthor Commented:
0
 
WernerVonBraunAuthor Commented:
There you have it folks. Zee internets exploder iz ebil
0
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