This is a just a cosmetic complaint but I have an application where I'm doing a lot of ajax updates of a table and I'm seeing some annoying redraw artifacts where the entire table pops down about 1 row, vertical and horizontal scrollbars appear (if they weren't already visible), and then the table pops back up to it's original position. This happens every time I do an ajax operation that causes the table to re-render.

This is annoying not only because it looks bad but also because when the table pops down it pushes everything below it down as well.

Is this a known problem?