Hey guys! Yesterday, I've been getting this weird problem of hearing static louder hiss/buzz in my headphones >when I am not touching the Macbook<. Swapped headphones - nothing. When I remove charger - problem solved. So, I got a new charger and things went fine for a few hours, but then it re-appeared. Since then, sometimes it goes away, but it doesn't seem it's grounded most of the time. I am using a grounded Apple made charger. I am not experiencing feeling of electric current when touching the Macbook, just the sound issue. When I unplug the MagSafe, the static sound is gone. I also discovered that I am able to ground the Macbook through touching of my Wacom tablet. Please help EDIT: It doesn't effect the in-built speakers, just headphones.