[mythtv-users] Picture quality question

[Dag Nygren]

Hi there list!

Finally got a working setup of my MythTV and
have some questions to you experts:

The setup is a Twinhan DVB-T board, Prosavage
display controller and a Viewsonic 16:9 LCD
TV using the VGA input.

The picture is otherwise fine, but in darker areas
with shades it seems like the colors available aren't enough
but there are distinct island s of colors.

Looking at the same picture through the analog built in receiver
doesn't show these artefacts.

My questions are:
1. Which part is causing this problem: broadcast, DVB-board, Mythtv,
  X-window system or LCD screen?
2. What can I do to get rid of it

Best from Finland
Dag