ubuntu got set in some unknown asian language

[Abhishek Dixit]

Hi,
yesterday I was discussing on this list as how to type in libreoffice
in Hindi (Indic language) on the following thread
https://lists.ubuntu.com/archives/ubuntu-users/2012-February/256944.html
and a package installation problem
https://lists.ubuntu.com/archives/ubuntu-users/2012-February/256922.html
as suggested by some members I have been doing changing in system
settings.How ever today morning when I did a reboot
I am unable to see English as my default language.My system is showing
some Korean or Chinese language which I do not understand.
I had asked the question (that I just want to use libreoffice for a
particular document in Hindi) what happened is even gmail is opening
in chinese language.
The system settings folder etc is also opening in chinese I am unable
to use the system now.
Have uploaded the snapshots here please have a look upon a reboot
asked to rename all folders
https://picasaweb.google.com/107404068162388981296/UnknownAsianLanguage#5704405897276606450
gmail opening in chinese
https://picasaweb.google.com/107404068162388981296/UnknownAsianLanguage#5704406102859334402
this is how menu on my system looks half english and half chinese
https://picasaweb.google.com/107404068162388981296/UnknownAsianLanguage#5704407869479955202
if you notice in third snapshot the calendar and menu is appearing in chinese.

I want the original US english menus folder names back.I just wanted
to type a document with Lohit Hindi font in Libreoffice.
Ubuntu 11.10 (I do not use Unity only Gnome desktop. I had installed
gnome-session-fallback long time back and had been using the same).

Please those who understand the things only reply I have no idea as
which suggestion of which member or what update (such as changing
server) caused me this problem.
How do I get back to all english submenus and english folder names.
-------------------------
Regards
Abhi