I just migrated my website to a brand new server, and now i'm having a weird issue.
Some characters on my RSS feed are not properly encoded, as you can see here : http://www.windowsphonefr.com/mise-a-jour-de-facebook-sur-windows-phone-8-des-performances-au-top/20392/feed
The characters affected are <, >, ', and ". Accented (á, é, ê, à, è, ...) are correctly displayed.
How can I fix this ?