May be wrong as it's only a recollection, but 757 diverted CDG en route ZRH-LHR within the last couple of years. On the 757, it does'nt seem to have been taken as seriosly as the 146, maybe because it often only affects the flight deck.
I feel that this is a really serious issue, and in the future could end up with a similar situation to that caused by asbestos i.e. hundreds affected irreversably.