Martijn If anyone has more Windows administrating skills than me (@jackivan88?), let me know: superuser.com/q/90...

🦿 Lucian Marin You can turn compatibility mode off. winaero.com/blog/h...

Martijn Nope, it only turns off compatibility mode for things on Microsoft's or your browser's list. Picasa sets the X-UA-Compatible header, which can apparently not be ignored.