Problem to display characters from other language than English

If  you are, for example, unable to display Swedish characters, this can mainly means that you probably have the language file written in UTF-8 and not in ISO-8859-1. There is no way an ISO-8859-1 environment will display characters from a different charset like UTF-8.

You may have saved data in database in UTF-8 for example. If you want to display correctly the data must be converted to a ISO-8859-1.