changing language not working correctly.

eyecandy report with screenshots -> http://www.testteam-mediaportal.com/Joomla/forum/showthread.php?p=2891#post2891

h4. Steps to Reproduce
1.Start MediaPortal
2.go to settings -> general
3.change language
4.you can no longer change the skin or language. the start in fullscreenmode setting has also been changed

h4. Additional Information
confirmed by koschel