If I recall correctly, by changing the datestamps on the files
(should happen regardless at O/S level upon update), one can urge the
browser to re-fetch afresh.
Well, My Netscape is a cat about that. My IE is a dog. It could be my
settings, but of course I can't alter other people's settings.
You can choose whom to befriend, but you cannot choose whom to love.
for Email, make the obvious change in the address.