Choppy Sound or No Sound Using WDM Drivers

When you try to play a Windows sound (.wav) or other audio file after you upgrade to Windows 98/Me, the sound may be choppy or may not be played at all.

This behavior can be caused by either of the following conditions:

• A resource conflict (such as a direct memory access [DMA], input/ouput [I/O] address, or interrupt request line [IRQ] conflict).
• You may be using an incorrect driver for the sound card or you may need an updated driver.

This usually occurs when Windows 98/Me automatically updates the sound card driver during Setup. The updated sound card driver may not work properly on Original Equipment Manufacturer (OEM) computers that have an integrated chip set of the sound card on the motherboard, but do not include the full functionality of that sound card.

To resolve this behavior, follow the appropriate steps:

Resource Conflict

Use the information in the following article in the Microsoft Knowledge Base to help troubleshoot resource conflicts:

Incorrect or Older Device Driver

1. Click Start, point to Settings, click Control Panel, and then double- click System.
2. On the Device Manager tab, double-click the Sound, Video And Game Controllers branch to expand it.
3. Click the sound card, and then click Properties.
4. On the Driver tab, click Update Driver, and then click Next.
5. Click "Display a list of all the drivers...," and then click Next.
6. Click Show All Hardware, and then click the appropriate manufacturer and model in the Manufacturers and Models boxes, and then click Next. If the appropriate device is not listed, click Have Disk, and install the correct driver from the manufacturer's installation disk.
   
   NOTE: If you receive a message stating that the current driver may be a closer match for your hardware than the driver you have selected, click Yes.
7. Click Next, click Finish, and then click Yes to restart your computer.