  Open Waves Control Panel. Is "Select Output Device" still set correctly? Open the Windows Sound screen. Is Realtek set as the output device? Then run the Troubleshooter on that screen...
Is there a way to obtain 5.1 surround sound on the XPS 8950 with no add in sound card? I have my 5.1 surround sound speakers plugged into the PC but only the Left and Right speakers produce sound. I have no problem buying and installing a sound card but i don't want to violate the warranty. I would have bought a sound card with the XPS 8950 when I bought it two weeks ago, but I bought it on Amazon and there was no option to buy a sound card. Thanks.
XPS 8950, 5.1 speakers plugged in, but no 5.1 sound