Hi zondre. First of all, thank you for your prompt response. I thought I'd have to wait until tomorrow.

Maybe I'm misunderstanding your suggestion. The div tag I believe I'm mapping to is in Map.ascx: <div id="theMap"></div>

the Site.css property for this is:

#theMap {
position: relative;
width: 500px;
height: 450px;
}

Is this correct or is it this one?
<divid="mapDiv">
<% Html.RenderPartial("Map", Model.Dinner); %>
</div>

Site property:
#mapDiv {
float: left;
}