big dataset and missing rows in IE

i enabled smart rendering on table that has ~500k rows. on ff and chrome it works fine. on ie 8 it works as long as i use only arrows to scroll. when i try to drag scroll down, ie will request for data but never draw them on the screen. what am i doing wrong ?

it works fine on ie5 and ie9. how to make it works on ie8 ? :slight_smile: