Problems With Multiple Audio Devices - Creative Sound Blaster X-Fi User Manual

Problems with Multiple Audio Devices
The other installed audio card is not working well.
You may have an existing audio device installed in your computer. The audio
device may be an audio card or an onboard audio chipset. Before you install
your Sound Blaster X-Fi audio card, you are advised to disable or completely
uninstall and remove your existing audio device. Operating multiple audio
devices in your computer may introduce usability issues.
Alternatively, during the installation of your audio card, do the following:
If your computer detects an installed Sound Blaster Audigy series, Sound
Blaster Live! series or Sound Blaster PCI512 audio card, a message box
recommending that you completely uninstall and remove the older audio
device will appear. Click the Yes button and follow the instructions on the
screen to complete the removal of the old audio device. Remove the old
audio card from your computer.
If your computer detects any other installed audio card, a message box
recommending that you completely uninstall and remove the older audio device
will appear. Click the Yes button to continue with the installation of the Sound
Blaster X-Fi audio card.
After the installation of the Sound Blaster X-Fi audio card, completely uninstall
the existing card and remove the audio card from your computer.
The onboard audio chipset is not working well.
Disable your computer's onboard audio chipset. See your computer's
motherboard documentation for details.