I've gotten a lot of questions at #suse as of late due to "No sound with Audigy" cards and openSUSE 11.0 and the culprit partially for these issues has been the new PulseAudio / ALSA system that defaults to outputting to Optical / SPDIF Passthrough instead of Analog which a lot of folks use.
To fix THIS issue with GNOME + Audigy 1/2 + PulseAudio, please take the guided tour:
First click on Computer and More Application, then type Volume into the Filter and choose Volume Control under System, presented on the bottom right in this picture:
If you have more than one device (like I do) choose Audigy from the File /
Change Device:
Finally, if you are not using SPDIF / Optical Passthrough, uncheck this:
