Why does WMP play too fast or too slow?
We use the audio clock from your sound card to time things, and it’s not working correctly. Per Patrick: This sounds like a problem I’ve seen on some sound cards. Please try reducing your audio hardware acceleration level in the ‘Sounds and Audio Devices’ control panel. After opening the panel, click ‘Advanced’ under speaker settings, then ‘Performance’ and try moving the hardware acceleration down to different levels. I’m looking at my XP machine, so the buttons may be a little different in other versions of the OS. [Note that you can also access the audio hardware acceleration slider in the app “dxdiag.exe” (already on your system) on the “Sound” tab.] Please note that by reducing hardware acceleration to none, you will lose any 5.1 audio support your sound card has (if any). If that doesn’t help, see “I’m having sound problems” for how to fix this.