Issue with Powerbook G4 using second monitor...

Hi, I was wondering if anyone could help me with a problem I've been having with my Samsung LE37R87.

Basically, I watch a lot of things off of my PowerBook G4 and wanted to hook up my laptop with the TV in order to enjoy a larger image, etc. I have a DVI to HDMI cable connected to the TV and use VLC in order to watch things on the Samsung. It registers no problem and allows me to select it as a second monitor.
However, when the picture shows up, it is zoomed in and cuts off a lot of the screen! I have since played around with it and have taken it off of 'Over Scan' however, now the image is surrounded by a black box which, although slightly better than having a large area of the image cropped out, is very distracting and unhelpful whenever I went to watch, or work, off of it as a second monitor.
I tried the Apple help and it said that if I don't have the 'Geometry' option in the 'Displays' panel, then I'd have to refer to my manual for the TV, etc. I have, but couldn't really find anything.

Can anyone help me with my problem so I can watch shows in their proper aspect ratio as intended? Thanks in advance!

 

Hi, yeah, I get two windows open that allow me to change resolution, etc. I've managed to get a fix for the problem though, so in case anyone else was suffering from the same problem try this:

Set it so that Over Scan is ON and on the Samsung (my experience is only with the Samsung) set the Picture to 'Just Scan' and that should fix it. It helped sort mine out and I can now watch things in a correct aspect ratio and my dock, etc now sit perfectly on the second monitor.