OK... I guess I misunderstood. Sorry to make a fuss.
If you think usage of Netscape 4.X is high enough that
a lot of users will complain or (worse) silently go away,
then it might be worth, say, changing the default
settings, or finding a different solution. I do /want/
it to work well for everyone, I'm just resigned that it
isn't possible to make everyone happy--but it may very
well be possible to make more people happy than I am now.