Puzzling. Because when I use the ico that you sent me, (Users2.ico), I get a broken image, as if it can't be found. My suggestion is to convert them to PNG-24 wtih alpha, then use the following in the style="..."; background-image: url(images/1px.gif); filter: progid:DXImageTransform.Microsoft.AlphaImageLoader(enabled='true', src='thenewpngimage.png', sizingMethod='scale'); You'll need a transparent image for (images/1px.gif) - I've attached one I've used in the past on other projects. EDIT: Okay, so attaching that image didn't work too well... 1px.zip