1. Click Start - Control Panel - Sound
2. Right click on the Speaker/Headphones icon and choose properties
3. Click on the "enhancements" tab
4. Select the "Disable all enhancements" check box
5. When finished, restart the PC.
Windows Help and How-to:
"How do I stop my music from
skipping or breaking up when I play
it?"
http://windowshelp.microsoft.com/Windows/en-us/help/36db5c82-9247-4346-909a-f87743b653ae1033.mspx
If you have a Dell PC, please read
the following solutions published on
the Dell website:
Vista delay before song plays:
http://en.community.dell.com/forums/p/18321941/18444927.aspx#18444927
Choppy/Skipping Audio under Windows
Vista Workarounds:
http://en.community.dell.com/forums/p/19142484/19265470.aspx#19265470
Sound skipping in Vista:
http://en.community.dell.com/forums/p/18709361/18832347.aspx#18832347