sound not working 9.04

I have the problem too a little history....

I had the problem briefly in 8.10 after doing some (add applications) then i reinstalled 8.10 and it started working again.

now after updating to 9.04 I do not know when the sound stopped working or if it worked at all been a very busy week but I decided time to relax and listen to some music and as you know no sound.

I checked the sound settings turned up all the volumes to no avail

the device selected in volume control is via 8237 (alsa Mixer)

I included the output from terminal command -w | grep audio listed below.

Any help greatly appreciated.

lspci -vv | grep Audio
00:09.0 Multimedia video controller: Conexant Systems, Inc. CX23418 Single-Chip MPEG-2 Encoder with Integrated Analog Video/Broadcast Audio Decoder
00:11.5 Multimedia audio controller: VIA Technologies, Inc. VT8233/A/8235/8237 AC97 Audio Controller (rev 60)
 Kernel driver in use: VIA 82xx Audio