hi everyone,need a bit of help here as i'm stuck really for a solution,custie e-mailed last night,glass is misted since you came two weeks ago- >:(thought i might have to stump up for new sealed units,arranged to call round at 8.30 this morning-sealed units fine-just a mist/splash marks on the glass-only thing we can both think of is that the window is in direct contact with the boilers flue-its like a blueish splash/haze on the glass-nothing i've ever seen before.previous wc was trad and never happened,i'm using wfp,am thinking maybe the fairy (as in liquid before you start!)was keeping the glass from contamination.anyone had this problem?-any solutions?