Have just found a hairline crack in a window and is enough to allow a little water between the two panes when it is raining heavy. Anyone had this and managed to use something to seal up the crack ! Also anyone know if it comes to it where to buy new windows ! Is a 1999 Hobby 750fms. When I have tried to find parts before there is always a sharp intake of breath and a shake of the head. Too old they say !!!