I keep having to use my friends' chargers and they quit working after a month or so. Same goes for all the replacement chargers I buy online. My laptop also behaves strangely when the replacement charger I have now is plugged in (mousepad doesn't work, barely works, or shakes the cursor around on the screen). As soon as you unplug the charger, it works perfect. WTF is wrong with my laptop? Nobody's been able to figure it out yet and I'm about to get pissed and just buy a new one.
Afraid to say, but it sounds like there maybe a short in the receptacle or somewhere in the circuitry that keeps destroying your chargers. I suggest you take the laptop in for repair.
