Even though I couldn't reproduce exactly the issue as mentioned by you in that jsfiddle, I could see a slight variant of it i.e., when you press mouse button on the bottom cell and don't leave the button immediately it causes the view to scroll / redraw couple of times.
As a fix to above, please specify height of the icons used in rows.
<img src ="..imgPrint.gif" height = "xx" />
<img src ="..imgEdit.gif" height = "yy" />