A similar thing happened at Disney Hall in downtown Los Angeles:
http://en.wikipedia.org/wiki/Walt_Disney_Concert_Hall#Reflec...
They fixed it by lightly sanding the reflective surfaces in question.
http://en.wikipedia.org/wiki/Walt_Disney_Concert_Hall#Reflec...
They fixed it by lightly sanding the reflective surfaces in question.
http://en.wikipedia.org/wiki/Museum_Tower_%28Dallas%29#Confl...
Has yet to be fixed.