Mic Jack Noise/Static problem

Hello,


I had a headset when I got the notebook N53SN ASUS, and when I talk in the mic, there's some static noise coming with beeping, high pitch low volume, I thought it was my headset and lived with it till I got my new headset yesterday.. and the same static sound is going on, I plugged the mixer, which is just volume controller and mic mute for the headset without plugging the headset in it, and I put "listen to the mic" in windows 7 settings, and the sound was there..

So I came to conclusion that it's the jack problem..

I've read around forums and lot of other websites, I found two solution and neither that I found working.. first was to clean the jack, I have no idea how to do that..

the second one which came into my interest is that there's a electric static in the notebook, which is true. There's a constant static feeling on the aluminium part of the notebook, with or without the AC (on battery).. I have no grounding in my electricity so I don't know how I would fix that either.

So any ideas would be cool.

Tld;r version: Inputting anything in the mic jack makes a noise like static.