<!DOCTYPE HTML PUBLIC "-//W3C//DTD W3 HTML//EN"> <HTML> <HEAD> <META content=text/html;charset=iso-8859-1 = http-equiv=Content-Type> <META content='"MSHTML 4.72.3110.7"' name=GENERATOR> </HEAD> <BODY bgColor=#ffffff> <DIV><FONT color=#000000 size=2>Have a customer with a Yamaha grand = who claims that Windex used as a cleaning aid ruined the surface. The finish IS = damaged, but after looking through the archives I've not seen any evidence that = Windex is indeed the culprit. Any suggestions / ideas? Thanks.</FONT></DIV> <DIV><FONT color=#000000 size=2></FONT> </DIV> <DIV><FONT color=#000000 size=2>Roy = Ulrich</FONT></DIV></BODY></HTML>