When I format cell as date by template 'D MMMM, YYYY' it results '22 Январь 2011'. It's a calque of English language 22 January 2011. In Russian it's some heresy, it should be '22 января 2011', from small letter, in genitive case. The most laughable is that you have a combo for date language, and get that crap instead.
Reproduced with LO RC4, Ubuntu 10.04 x86.
spreadsheet->kohei ( although I guess this is possibly a more generic issue )
Fixed with http://cgit.freedesktop.org/libreoffice/core/commit/?id=c01ce861aced958302087117a5c5019d420b9d52