Sound problem.

My computer cannot play a sound file smoothly.

It skips and jerks, everytime it plays music files.

It wasn't the speakers, as I already tried various speakers.

It wasn't the CD-player, as I already burn all the songs into MP3 and saved it on the hard drive.

So, what's the problem?

Have you tried different players?

It's ok, now.

I think there's a ghost in my comp.

Thanks anyway.