hey guys, ive got a benq pe5120. its connected to my sky+ by a mid range (£110) 8metre composite cable, and a mid range (£135) 8 metre s-video cable. now the picture quality was never amazing, but it was good considering im getting an 80" picture. i prefer the quality over composite, so never use s-video. anyway, whenever i watch football using either cable i get these unbearable jaggy lines, like a tearing effect! someone tells me this is interlacing gone wrong. ive got no idea how to fix it, can anyone help please? thanks guys.