I have just upgraded a site from 4.6.2 to 4.8.0. The site is in swedish and I have experienced that the globalization culture in web.config that has worked best for swedish language has been "iso-8859-1" . I have used it in several sites in earlier versions of DNN. 

But now after upgrading to DNN 4.8.0 I get some weird characters in page title, or module title when updating a page or module settings. The swedish characters Å, Ä, Ö is being replaced by characters as Ã… Ä Ö Ã¥ ä ö . Those are definitively not swedish characters....

If I change to "utf-8" in web.config then it works almost fine, except that in custom modules, or in skins where I have coded swedish characters is being replaced now by a � character. (Yes, a square)

Okay, I can change and correct these in the skins or custom modules, but then I got problem with one page where I use the Iframe module showing content from an external site that is out of my control. 

What change has been done in DNN 4.8.0 that is causing this? Does anyone know how to solve it, or rollback to earlier globalizations settings in?

// Petri