Problems with Older Sound Blaster Audio Devices
Applications installed with older Sound Blaster audio devices are not working.
Apart from normal playback and recording functions, older Sound Blaster audio devices may not work well when your new audio card is installed.
To solve this problem:
Uninstall and remove the older audio device from the computer. Or you can choose to disable it:
For Windows Vista
To enable the audio device again, right-click the list of audio devices, select Show Disabled Devices, right-click the disabled audio device's entry, and select the Enable option.
For Windows XP
When the audio device is disabled, the entry in Device Manager shows a red cross.