hi guys, i,ve just had a call from a customer saying he thinks i,ve scratched the glass, the windows were fitted 4 months ago and i,ve cleaned them twice previously with no probs, i,m wfp and use a soft vikan brush, as anyone else come across this..he says the guys who fitted them are going out next week to try and polish the scratches out but he obviously thinks i,m responsible for it..cheers