Quote Originally Posted by si_the_geek View Post
It seems that the only thing that could hide it in the first place (as you want) is the CssClass="modalpopup" on the panel.

It seems to me that css class is not referenced at all, as I can't see anything in what you showed that defines it or refers to a css file. It may be that it is supposed to be defined by AjaxControlToolkit somehow, but I haven't used that so I'm only guessing.
The class is at the top of the .aspx page. Here is the code:
Code:
<style>
    .modalBackground{
        background-color:black;
        filter:alpha(opacity=90) !important;
        opacity:0.6 !important;
        z-index:20;
    }
    .modalpopup{
        padding:30px 10px 30px 10px;
        position:relative;
        width:550px;
        height:100px;
        background-color:white;
        border:1px solid black;
    }
    </style>