Cell appearing at top of Gridview?

I had two cells appearing before "Columns" on my code where I show two rows with data in. I added  Showheader ="False" which removed one but now I still have a single cell before my main display of data (for one item thing Employee details). In the code I have put in "123" & "456" (as you will see below) the "123" appears before the cell and the "456" appears in the first row in the first cell (as you would expect) so how and what is the first row single cell and where does it come from?! 
I hope the below code snippet is enough as I believe it to be something to do with Gridview?! 

<asp:GridView ID="GridView2" runat="server" AutoGenerateColumns="False" CellPadding="0" DataSourceID="SqlDataSource1" Showheader ="False" ...