You will first need to determine what kind of sound card you have. You will find its name and manufacturer listed under Options | Audio | Driver in Music Creator. Once you have this info, select your sound card manufacturer from the Hardware Setup Guide and follow the instructions here.

If you experience difficulties changing your driver mode, please run the Driver Mode Changer utility to change your driver mode to MME 32-bit.

You may also get this error message when setting the Driver Bit Depth or Sampling Rate beyond the capabilities of the currently selected sound card.

1. Go to Options > Audio > General and reduce the Driver Bit Depth to 16 and the Sampling Rate to 44.1. This is CD-quality and is the best option for most users. Please keep in mind that while many consumer cards such as the Creative Labs Audigy advertise 24-bit capabilities, their drivers only support 16-bit recording/playback.
2. If your soundcard's clock can be controlled via an external connection (ie Word Clock, ADAT, etc) or via a control panel, please make sure that the device's current sampling rate matches the settings in Music Creator.
3. Your card may also be in use by another program on the computer. To eliminate this problem, please close all applications running in the background such as Real Player, Winamp, etc and turn off all Windows Sounds from the Control Panel. You may then need to restart Music Creator.