I have been trying to figure this out, but have been unsuccessful. I am using a modalPopupExtender, but when the popup comes up, my background is still active. I suspect it has to be something in my css file, but would appreciate some help on this. Here is the code for the MPE:
<cc1:ModalPopupExtender ID="MPE1" runat="server"
Here is the code in my css file:
border: solid 2px white;
Any suggestions would be appreciated. TIA!