I'm trying to change it to Latin America language, however in the System Settings->Hardaware->input devices-layout tab nothing seem to works correctly (even if I add any layout)
Also I can type for accents but in a weird manner. I have used the answer as discussed
here. I have used that answer (the method # 1 and # 2) system-config-keyboard selecting Latin America, and works perfect but when I restart the computer changes are not saved, and need to do that again.

What can I do then?