PS3 Owners, Question?

I'm having a strange moment of WTF?

I have a ps3, I have many games, one of which is Wipeout HD... All my games have a small preview and sound playing when i hover over them in the XMB, but for some reason wipeout is silent?

Now, I'm sure it used to play music? ... Did it, or am I loosing it? It seems it's the only game I own that has no preview music in the XMB preview?

I have the fusion pack, the latest firmware and all updates installed.

All other game previews work perfectly, all other sounds, games, movies, music etc is fine it's just this one game? Im sure it previously had music in the preview window?

Anyone?
I think the alcohol and food over Christmas may be getting to me