Hello,
I read the thread:
dhtmlx.com/docs/products/kb/inde … e%20header
About how to hide the row header in both IE and Mozilla.  However, I cannot get the code provided to work in IE6.
How can I hide a row header?
thanks!
If you just need to render grid without header you can use 
    grid.setNoHeader(true);
( this command need to be issued before grid.init )
As result grid will be rendered without header.
If you need to fully remove row from header grid supports
    grid.detachHeader(header_row_index)