I am running into an odd situation - after a weekend of frantic attempts to improve performance of a site I find the Macro cache!  An instant answer to my questions - at least on the surface.  I slap it on a known problem spot and like magic my CPU use drops to a tiny franction but my images went poof!!!

A cut down version of my control is below.  It displays fine without cache enabled but with cache on the images turn into empty white boxes.  Not a good look.  If there some trick to getting this to work?  The text content works just fine, its just that pesky image.   Thanks for any help - I have my fingers crossed this works as it will turn what is an out of control project into a blazing fast work of art!

<asp:Repeater runat="server" ID="contentBound" >

  <ItemTemplate>
     <h2><asp:Literal runat="server" Text='<%# Eval("Title") %>' /> <span class="grey">.</span></h2>

     <div class="featureImg">
     <asp:Image  id="Img1" Height=' <%# Eval("ImageHeight") %>' Width='<%# Eval("ImageWidth") %>' runat="server" alt=""  ImageUrl='<%# Eval("ImageURL") %>'  />       
    </div>

</ItemTemplate>
</asp:Repeater>