Perhaps if your pc has a sound card and a graphics card (rather than onboard ones) they are somehow conflicting with each other, or interfering. Try installing them in slots further apart.
Possibly you have a weak power supply, and the extra load of the cd player is taking the power levels down enough to cause the screen to distort.
Not 100 percent sure, sounds like a odd one this.
http:www.lasermemory.com
ken, August 2004