Continuous keystroke echo through laptop speakers.

[acfilban]

I have an Acer 7551 laptop and every time I click my keys I can hear a faint gargled-like echo through my speakers. Even if I pick up my laptop or tap on the table it's sitting on, it sounds like it amplifies that sound as well. At first I was getting major audio feedback but I adjusted the microphone settings by decreasing the microphone boost and that went away, but the mysterious keystroke echo is still there.
Any help I would greatly appreciate. Thanks.
-Anna

[sicarie]

That's really interesting - have you tried muting the microphone completely? There might be a pickup near the keyboard causing that.

Have you updated the drivers for the sound card/audio devices?