Shoutbox

Hello,
I know how to change a keyboard language, but I am barely able to manage the languages setting in my OS.

Here is my problem.
I try to install a language pack for my Firefox browser. The problem is when I use the software with the Greek language set, I have cabalistic signs, like that : óïõ óôÝëíù ôï üíïìá ôùí ößëùí ìïõ êáé ôï ôçëÝöùíü ôoõò.
Even with the best will, I am unable to read those characters.

I ask you some help because I don't want to be hazardous while setting my pc : being hazardous may damage the entire computer


Thanks for your help