[Koha] i installed koha 4.2 but i cant change the language to the one i like

as guide, i create a my language po file( i.e new.po ). i used ./tmp_process.pl install -i ..... the command run well but my koha intranet/opac interface didnt change anything.i follow the guide on koha package and wiki but it doesnt work so i have some question : 1. if i create a new.po file. how i can make it work when i installed koha or when i'm going to install koha ? 2. can u list me what i can modify/customize in koha thanks in advance :D -- View this message in context: http://koha.1045719.n5.nabble.com/i-installed-koha-4-2-but-i-cant-change-the... Sent from the Koha-general mailing list archive at Nabble.com.