Transparent PNG in AdRotator - Applying Behavior

I'm having a bit of trouble with AdRotator. I have images that are transparent PNG files. I created a style that applys the behavior to correct IE6 inability to display transparent PNG images. When I add the reference, images don't appear. They work in FireFox, just not IE6 (I haven't checked IE7). This behavior works everywhere else in the site.

Is there a workaround?

<asp:AdRotator id="AdRotator1" runat="server" borderstyle="None" datasourceid="SqlDataSource2" cssclass="adRotator"></asp:AdRotator>

.adRotator {
behavior: url('/behaviors/pngbehavior.htc');
border: 0px;
padding: 0px;
margin: 0px;
}

You need to haveheight andwidth set in AdRotator or CSS.

Treeview, how to remove style on preselected node

In my .NET 2.0 project and I'm using a TreeView with Atlas so the page doesn't postback. When the page loads the first time, it also preselect a node based on a value saved in the DB. The style applied on this node doesn't change when user selects another node. However, the style on the node user selected is removed once user selects another node. I'm guessing there's a javascript variable I need to set on page load?

T"he style applied on this node doesn't change when user selects another node. However, the style on the node user selected is removed once user selects another node."

So the node loses it style when what occurs? I'm not quite sure what you mean by that?
Just so you know though the TreeView control doesn't cause a postback in terms of navigating through the tree. If you need to apply a certain style to the TreeView just look at the options for it here.

http://www.asp.net/QuickStart/aspnet/doc/ctrlref/navigation/treeview.aspx

That should give you a good starting place for how to work with the TreeView control both on the server side and client.

JoeWeb