System: Windows SP2
Sound card: C-Media CMI 8738
Download&installed drivers & utilities from c-media site
Everything went smooth, sounds clear and good, all c-media utilities work, can add effects, adjust volume for each speaker
Except that XP sound/wav playback only use front speakers
When i go to Control Panels >> Sound and Audio Devices and click on "Speaker Volume"

microsoft site says
http://www.microsoft.com/resources/documen...t_speakers.mspx
Does this mean driver didn't get reconized or windows simply doesn't support this or all C-media cards...?is there any way to have speaker volume for all speakers inside sound control panel and have system/wav plackback on all 4 speakers...?

[ a little off topic : Company claims that it supports A3D, DirectSound3D and EAX-isnt DirectSound3D is part of MS DirectX? if so, wont it be supported by MS Windows ]

Thanks in advance for any help/tips and thoughts

Here is what i see:

welcome to Neowin

I think you need make adjust from c-media control panel and not from windows, but also you need verify some patch in c-media website or see your faq too

Thank you
C-media doesn't have control panel, they provide task bar app called "mixer", which does decent job of adjusting sound[ looks a bit ugly and can't adjust volume bars with arrow keys unless you make them global/hotkeys ]. So far i wasn't able to find any patches that would patch windows sound control panel to recognized 4 channel audio card, as i said previously[may be i'm wrong but] by not having control over 4 channels in windows control panels leads to that the system alerts/sound/wav playback is only using front 2 speakers. Windows Media Player have no problem playing other media files[mp3, avi, wma] using all 4 speakers...
As for c-media website, faQs and their drivers:
This is the latest driver they have up on c-media website and clean SP2 setup with only audio and graphic card driver and diskkepper, anti virus installed-nothing else...
Of course FAQs on web site doesn't cover my type of problem

P.S.: The images i attached previously, there is Advanced button saying "Select the speaker setup that is most like the setup you have on your computer, changing that to quadraphonic speakers or Surround sound speakers" doesn't help

yep dude, well I have in my mobo onboard also C-media but six channels 9739A and it is amazing trust me and came with one app named C-Media Mixer fantastic with several effects on it, but I don't use it because I have one creative SB Live Value PCI that is better of course IMO and also I use now drivers for Audigy2 and works fine here simply amazing, once I have one external power amplifier Sony with 100W rms and four big acoustic boxes really I have one Disco here hehe.

well, maybe your could try use drivers for C-Media 9739A and your app too to verify if works, but for your own and risk equal mine when try using drivers for Audigy2 if not works then is more easy you buy one creative sb live too is cheap since that you have one pci slot also of course, try dude