utf8 + alt_charset = broken?

[Atom Smasher]

i've got access to two linux boxes where alt_charset in screen seems 
broken. on a third linux box (and several freebsd boxes) it works fine. 
the difference seems to be the locale, which does not adversely affect 
alt_charset in other terminal emulators.

screenshots and explanations:

1) the way things should work with alt_charset behaving properly on a 
recent linux install. the locale is set to "POSIX".
        http://smasher.org/tmp/snapshot170.png

2) broken. this is also a recent linux box. the alt_charset is hosed and 
the locale is set to "en_US.UTF-8". note that some of the output is 
displayed as double-characters.
        http://smasher.org/tmp/snapshot171.png

3) using the same box as #2 i ran "export LC_CTYPE=C" before starting 
screen. then under screen the alt_charset is displayed correctly.
        http://smasher.org/tmp/snapshot172.png

is there an easy way to properly fix this? am i doing something wrong? or 
is this a bug in screen?

thanks...


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