Error 1042

[Mytrandir]

Maybe wrong forum for that :D

so i have a error 1042 when i try to login or want host own server :(

http://free.pages.at/mytrandir/eq1.jpg

i dont realy know what he means whit "wrong language pack" i tryed intall all and unsinstalled often all same error each time :(

im using WinXp Pro