speakers "hiss" when plugging in headphones in headphone jack

i'm not quite sure why it's doing that and its really bugging me. the hiss
isn't loud or anything but it is pretty noticeable. any person i have asked
who have laptops haven't experienced this problem. is there some way to stop
them from hissing?

I have this same hiss. It has the same patter like the "busy" noise your
computer makes when many programs are on simultaneously.

This is really annoying. When I hit the mute button, the hiss
disappears.

It's a DELL Vostro 1000 Laptop.


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mikeg19_82