I have the same problem!
A few days ago firefox and IE started to display my site wrong wwww.kastelicspringer.eu
The encoding should be UTF-8 (it is set in the wp_config) but when I examine the sourcecode in FF it says that it’s set to UTF-7.
<meta http-equiv=”Content-Type” content=”text/html; charset=UTF-7″ />
Where can I change this property — where is the wordpress file containing “head” meta instructions?
Thanks for any help.