My sound dosen't appear to be working on my Mac, it was working fine before but now it isn't working at all. I tried hooking up speakers and still I get no sound, I have opened the System Prefs in Mac OS X 10.1.5 but still I can't get it to work, I dunno if it works in OS 9 or not I haven't tried yet. I'll restart later and try. My sound out is controled through my AV in and out card that Apple had in my computer. I know OS X can't recondize my AV in and out does this happene with the soound too? PLease help, thanks