I have an Alba 55 DVD region 2- up until recently it played fine but since linking it to a (relatively) old portable TV via scart it's playing some DVDs but not others for no reason I can see. It will play copyright warning etc but then fuzzes like TV interferrence once on the menus or film proper but will play Dolby logos etc and whole other discs no problem, any ideas? I'd really appreciate it as i'm pretty clueless!