I'm using Backtrack 5r2 and i cannot connect in internet

My wifi card controler is an Atheros AR9462 and i've an Acer Aspire v3 571G.

When I enter the password, wicd says : Connexion failed! bad password. I enter the good password, I dont understand.

So I've an other problem, when i want to put my BT in french, i've "no such file or directory" for many files!

Thanks for the answers.