I have this test page : http://jsfiddle.net/VWnm9/7/. The image is correctly faded on all my computers running IE7 or IE8, except for one computer that runs IE7 and doesn't fade the flower, even in noext mode.
The page is :
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
"http://www.w3.org/TR/html4/loose.dtd">
<html lang="en">
<head>
<style type="text/css">
body {
background: blue;
}
img {
filter: alpha(opacity=10);
opacity: 0.1;
}
</style>
</head>
<body>
<img src="http://upload.wikimedia.org/wikipedia/commons/c/c3/Extracted_pink_rose.png" />
</body>
</html>
Does anybody have an idea why?