with /usr/lib/locale/locale-archive firefox doesn't start, neither skype.
I boot with lang=it_IT@euro and I have glibc_gconv.tcz installed (not mounted).
I tested in 2.3.1 and the problem doesn't exist.
from dmesg:
firefox-bin[23513]: segfault at cd760c0b ip cd760c0b sp bf836824 error 5
skype[24303]: segfault at db3e05de ip db3e05de sp bf86db44 error 5
I've also seen some error concerning ISO- something