[ydl-gen] Problem with full screen mode

[stankao]

Thanks to Rob, I am able to get 1080p displayed correctly on my Samsung
S5687.  But I couldn't set it to full screen mode.  It seems like if I put
it on full screen mode some parts of the display will be drawn outside the
display area.   But if I put it in regular 1080p mode without full screen I
get a black frame around my HDTV.  Any ideas on how to tweak full screen
mode?   Instead of adding 128 add only 120?......

-stan