I just loaded the 9.3 64 bit version and the sound was in the off position.
Really I would have thought it would make it easier to have the volume set to a half and the switch in the on position.
It's little thing that are like this that drive you mad with Suse installation.
You have to click on the taskbar on the loudspeaker ikon, click the green led to the on and move the slider to half volume.