Oolite Bulletins

Thanks for your help. I got it sorted. I was trying to turn the sound on by pressing the right arrow key, but being an idiot, I had failed to realise that i have to press f2 first while in dock before the arrow keys had any effect. D'oh! (believe it or not) I did actually read the instructions, but ...

just got one of the new intel imacs.
I don't get any sound at all out of oolite.
not a squeak - total silence.
Tried a search of the forums, got no relevant results at all.
Problem must just be me then?
Anyone know how I fix this?