Is this optimized for 16:9 displays? I ask because I'm outputting 16:9 video to a 4:3 display and I'm getting a very squished output. Granted, it's better than no output! But when a DVD player shows the same video on the same screen, it is able to get the aspect ratio correct, so I know it's possible. Any way to make adjustments for those of us with old fashioned 4:3 TV sets? :-)