I've been banging my head on this one for a while now, so maybe someone else can figure out what's wrong here. I have several tables throughout my site which are defined using:

<asp:Table ID="tbl1" runat="server" HorizontalAlign ="center" CellPadding="0" CellSpacing="0" >

...plus the rest of the table. The tables center properly in the browser, but when I try to...