4200 to widescreen tv

I have the overlay set up okay to send a picture to my TV, however using the latest detonators I can't adjust the picture to remove the extra black bars from the top and bottom of the screen, so divx films etc are compressed into about a third of the screen, which although i can get the tv to zoom then looks appalling. I'm sure there previously was an option to set to 4:3, widescreen etc. I'm using a leadtek ti4200-8x with vivo on a svideo cable and i have the 44.03 detonators. TV-tool doesn't seem to help.

Also is it possible to adjust the clone mode to scale the picture when not watching films in order to stop the tv screen following the mouse around. I'm sure this always worked in the past too.