Thank you f1 fan for your replies.
The suggestion you made is not still working.
I do not know whether the structure of a datagrid control's hyperlink button rendering does qualify as and has the attribute of a valid table. It has no valid "tr" and "td" tags.
Below is an example of what I'm talking about
[html]
<asp:datagrid id="dgLocationLink" runat="server" Width="140px" OnItemDataBound="Grid_ItemClicked"
BorderWidth="0px" CellPadding="1" AutoGenerateColumns="False" Height="168px" CssClass="DefaultDataGridStyle">
<AlternatingItemStyle BackColor="#d7dce8"></AlternatingItemStyle>
<HeaderStyle Font-Size="15px" Font-Bold="True"></HeaderStyle>
<Columns>
<asp:HyperLinkColumn ItemStyle-CssClass="tablecellhyperlinks" Target="iA" DataNavigateUrlField="dToYou"
ItemStyle-BorderStyle="Groove" ItemStyle-BorderWidth="10" DataNavigateUrlFormatString="../alink1.aspx?idm={0}"
DataTextField="dToYou" HeaderText="You">
<HeaderStyle Height="40px" BackColor="#6b83c6"></HeaderStyle>
<ItemStyle Font-Size="20px" Height="40px"></ItemStyle>
</asp:HyperLinkColumn>
</Columns>
</asp:datagrid>
[/html]
while this is the css
.tablecellhyperlinks1 TD
{
text-decoration: none;
DISPLAY: block;
}