Paul,

FWIW

<asp:Literal ID="litHeader" runat="server"></asp:Literal>

// with this C# code in Page_Load
litHeader.Text = sQueryParms.Replace( "|", "<br>" );

does exactly what I need it to do.

>I tend to just use a label for this kind of thing. Generate the string then set the labels .Text property to it. You can wrap it with some <pre> tags if you don't want the browser screwing with the layout.