Just a note to say that Yahoo 5.6 works in CX 5.0.1. Everything works, except for webcam and audio. I tested everything and it all ran flawlessly for me (except webcam and audio, of course) Only other thing i noticed was that I couldn't see the typing notification in the window. Note that it may take a while for it to start up for the first time, it took probably a minute to start up for me on it's first time, after that it started up pretty quickly.