solaris and postgresql and locale

Hi!

I'm having trouble setting a locale other than C when running initdb.

"locale -a" reveals the appropriate locale, sv_SE.UTF-8, and it has been
installed, but initdb just complains "cannot set locale" and uses C instead.

This is not a postgres problem, same thing happens with xterm, but I just
thought I'd ask here since all I want on the machine is postgresql.

Thanks for any tips.

Regards,
Palle