Bah technology

For some reason, the non-terrestrial channels on our Sky+ box are showing very dark on the TV.  If you switch to BBC1/BBC2/ITV/C4 it looks fine (they’re still being delivered via Sky+ over the same SCART connection).  But anything else you can actually see it ‘flip’ to a darker picture.  On top of that, any dark scenes are causing the black on the TV to get totally saturated and you can hardly see any detail.

I’m positive it only started doing this in the last couple of weeks, maybe even after I switched in the new Sky+ viewing card.

It’s really frustrating me.  I hate when ‘simple’ technology like this doesn’t work and hate it even more that I can’t fix it.