Cannot get full widescreen picture (16:9) via VGA

I'm trying to setup my LCD HDTV as an external monitor for my MacBook. The issue is that the TV is not displaying a full 16:9 image from the MacBook; it's only showing a 4:3 image, so there are large black bars on the side of the picture.
Setup
- TV: Samsung 40" LN-T4061F HDTV (full 1080p resolution)
- Connection: mini-DVI to VGA, VGA to TV
When I go to System Preferences > Displays, it finds the Samsung without an issue. It even defaults the resolution to 1920x1080, 60Hz. But for some reason (in both mirror and non-mirror mode) the display on the Samsung is 4:3 so I don't get the full widescreen capability.
I can certainly try something like SwitchRes X but I thought I'd check the forums first to see if anyone could provide some help. Thanks in advance.

hey there jsizz,
does your TV have over/under scan? you might be able to get "fullscreen" w/ a miniDVI to DVI +DVI or HDMI cable. the MacBook "officially" only supports up to a 23" display, but i've successfully connected to my 42" Sony LCD Projector HDTV & gotten fullscreen using a miniDVI + DVI>HDMI cable, which has over/under scan control.
good luck.
Message was edited by: Donna Jones1

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