Is your problem only sound?
What skin are you using?
What are you playing through, Winamp?
Make sure the player path/ zones are correctly setup in f2. Also make sure XL is actually launching the player, and you are not manually launching. Are entries adding to the playlist?
(or indeed anything to do with sound).
Is the sound dead for music only or zoomplayer or button sounds as well?
P.S.
Why are you Xmeedio?