Gary may recommend something he knows of, but the only thing i know of that is supposed ot work on this is something that Zaino sells.It's a glass polish, and like all Zaino stuff, better check your bank account before you buy it.
__________________
\"They that can give up essential liberty to obtain a little temporary safety deserve neither liberty nor safety.\"
Benjamin Franklin, Historical Review of Pennsylvania, 1759
www.cybermopar.com
TripleJack