I have just bought a thomson 28 inch widesreen tv,I have it connected to a proline 2000 dvd player,the problem is that when viewing ntsc discs,the picture seems to bend,as if there is interference,but there isnt any,this never happens on pal discs,this never happened with the tv i had before,which was over 10 years old.they are connected via the scart socket,any help appreciated.