I have noticed the same problem on my Contour....Actually one of my windows broke, so I put a new one in, and it isa doing the same thing....I asked the glass guy about it, and he was most unhelpful, but I think we're up a creek as far as the scratches go.

1996 Contour GL AT, 2.5 V6 No mods, rollin on 14's with hubcaps, 116,000 miles, and still havent been beaten by a ricer.