This can be caused by a voice modem taking control of your sound device. Please
follow the procedure below to work around this issue.
Windows 2000 / XP
1. Right click on My Computer and select Manage (for XP access my computer from
the Start button)
2. In the right hand pane click the + sign in front of System Tools and select Device
3. In the right hand pane click the + sign in front of sound, video and game controllers.
4. Locate wave device for voice modem, double click, locate device usage and choose to disable device.
Windows 9x / ME
1. Right click on My Computer and select properties
2. Select Device Manager
3. Click the + sign in front of sound, video and game controllers.
4. Locate wave device for voice modem, double click and choose to disable device.
5. Launch Audio Central you should now have access to your sound card. You may
need to choose game compatible device.
The final cause we have found are "Ghost" devices. These are devices that Windows
has setup but are not on the system. You should clean your system of these
Phantom" devices. Following are articles that you might try to help with this
In Windows XP:
For more information see Microsoft KB 315539:
- Device Manager Does Not Display Devices That Are Not Connected to the
Windows XP-Based Computer
In Windows 2000:
1. Go to "Start" then "Settings" and then select "Control Panel"
2. Double click "Add/Remove Hardware" and click "Next"
3. Click "Uninstall/Unplug a device" and Click "Next"
4. Click "Uninstall a device" and Click "Next"
5. Click "Show hidden devices" which will reveal Ghosts, however after every
removal you have to start the process over.