Computer Help!

[Janet]

Suddenly out of nowhere, everytime I listen to a song on my computer, the beat is off, there is alot of static and it sounds awful and slowed down.

I played songs off Ares, it did that. Then I played my song on MySpace and it did that. What possibly could be wrong??? Music on my computer is so very important.

I just tried on another program. Wherever I play music, it's really bad.

Would a speaker ruin it that much? I never could play both speakers ( they are 6 years old) so I have always just had one ( the other just sits there) but would a bad speaker slow down the song and add that much static or could it be my actual computer?