maybe you can try my solution, i worte a jquery plug-in can be fixed header and freeze column.
It is working on:
Internet Explorer 7, 8 (IE 9 Compatibility)
Internet Explorer 9 (9.0.8112)
Internet Explorer 10 on Windows 7 Preview
Google Chrome(23.0.1271.64 m)
Mozilla Firefox (16.0.2)
Apple Safari (5.1.7)
GridViewScroll with jQuery