In reply to G4BLH:
Ah well once you leave the confines of ASCII anything can happen! Or more simply put, if computing had been developed where non-Roman alphabets are used instead of the UK/USA then we’d be trying to get a Roman font to display on a Cyrillic/Kanji/Chinese/ website.
Sometimes the characters don’t display due to missing fonts. Sometimes the browser doesn’t know the encoding. More often than not, some piece of software somewhere along the line doesn’t support anything which doesn’t fit into 7-bits and just truncates the characters.
I do recall reading something about this on the reflector, so hopefully it will get fixed at some (not too distant) point in the future.