DVD Image Size

hey ppl

have got a dvd videots/audiots on my atv however when i play it through nitotv the image size is 4:3(or what ever it is) resolution with black bits either side of the picture.

i have installed smart installer and have tryed changing my screen resolution as i saw in another post, neither of these fix the problem.

any ideas??

thanks

You may try re-running the Smart Installer, and restarting the AppleTV.
http://wiki.atvflash.com/index.php?title=Smart_Installer