How do I take apart an xbox dvd remote?

Hi guys, had to use my xbox for a DVD (hunter, Pc has trouble playing it, xbox doesn't. Each disc has marks on them in the same place, sort of transparent white, you can barly see the marks. LAST time I buy dvds second hand. Only tried one disc so far though.)

So my remote has word down and the buttons are not responsive at all, REALLY have to press hard on some buttons.

I want to take it apart to clean it up a bit but there are no screws (bloody microsoft!) anyone know how to go about getting it apart without breaking it?