[Frank Incensed]

I've always liked the fact that I thought there was very little wind noise in my Tourer - even from the roof rails.
I had a new windscreen fitted by Autoglass the other week and the wind noise became noticeable above 20 mph. I took the car back to them and they refitted the screen. Although it's definitely a lot better, I still don't think it's as good as it was with the original screen. Autoglass have basically said I can keep bringing it back until I'm happy, but I don't know if I'm being over sensitive about it and I'm obviously listening for it now.
Has anyone else had this problem? What was the cause/solution? How much wind noise do other owners suffer/tolerate?
It doesn't bother me when I'm on my own as I usually have the audio on, but, in general, I don't have music on when I have passengers.