I bought a new DVD player the other week, connected it via a scart lead and everything was fine. This morning i noticed that lines were obstructing the picture, so i removed the scart lead and plugged it back in again...for some reason the picture quality now has become very dull and colourless I have a DVB Box which has 2 modes "Video" or "RGB" of which i usually go for the video option because the picture is much brighter which i prefer, is this the same thing with the DVD player? I havent changed any options on the player only removed and replaced the Scart lead??

Yeh there are a couple of options. usually:

composite (aka video)
rgb
and s-video

most dvd players, that kind of thing out put in 2 of these.

rgb and comp and be run through the scart at the same time. the last one can not, hence you have to tell your tv to expect s-vid.

the last two have far superior picture quality, less fuzz. but some tv's process them a bit dark.

My advice would be to set them both to rgb and adjust the brightness on the tv.

Thanks for the advice. Strange thing is the DVD player doesnt actually have various options to change the video type, looks like im stuck with it like this

cant work out how i havent changed anything and the picture quality has deteriated, also if i fiddle with the scart lead it goes bck the way it was but i cant get it to stay like it anymore

Your dvd will probably output RGB on one of it's scarts at least.
You should definitely try to use this connection if possible as the picture is much better than composite.

Sounds like a dodgy lead/connection to me.

Can you try a differant scart lead?

StereRowe