Hello All! Im new around here, I have a macbook white late 2009 13'' and the cable of my charger cut so I bought a new one. The model of the original charger says: 'for model number a1330'. It's a 60W charger. I bought a new one that says 'for model number a1344' also of 60W. Im noticing now that when I plug the mac the mouse starts to lag. The cpu its not working hard and it seems to be when I plug the charger. Can it be related with the new charger? Or a charger for a1344 should work fine and I'm just freaking out? btw the pc is running osx 10.9.4 Thank a lot!