Charset problem

[smh]

I've got a problem with the charset in my Kayako installation.
It seems that all danish characters are converted into strange characters.

I've tried to configure Kayako with ISO-8859-1 and I've tried to configure it using UTF-8. I've tried several different configurations, following is a list of places where I've tried to modify the charset (got the sollution from another post):

1) Admin CP > Languages > Manage Languages > Edit
2) Admin CP > Languages > Manage Phrases > "charset" phrase
3) locale/en-us/en-us.php file, Look for 'charset' => 'UTF-8'

But it doesn't seem to work. With this configuration the e-mails which are sent to the customer loose the special characters and the client interface to the support system prints weird characters instead of the danish ones. In the admin interface, some e-mail are displayed correct in the first post, but when the customer answers our replies, the special characters are converted into strange symbols once again.

Is it really necessary to dive into the code and do the bugfixing myself or is there a sollution to this problem?

I've really tried to configure the Kayako charset in every possible way, but when the problem seems to be solved in one place, a new problem pops up in another place. So this must be a bug.

[smh]

It seems that Kayako is saving the language in UTF-8 in the database, but when the language is extracted, it isn't able to convert it into ISO-8859-1.
I can edit all the language phrases from the admin interface and that solves the problem, but I can't import the language without having to modify each phrase.