I'm using a late 2008 MBP, and for the past few months I've had problems charging it. I plug in the charger and the batter icon on the menubar changes to a little plug symbol, indicating (I assume) it's on AC power but not charging (usually has a little lightning bolt symbol). The light on the magsafe stays dark or glows very very faintly green. Additionally, while it's plugged in, the screen very faintly flickers in brightness every now and then. I had figured this was an issue with the battery - I replaced the battery about 2 or 3 years ago, could well be time for a new one. However today I noticed that if I put just a tiny bit of pressure underneath the cable just behind the magsafe connecter to push it upwards, the light on the magsafe turns on, the battery indictor switches to the charging symbol and the screen stops flickering. So I'm wondering - is this just a sign of a worn down magsafe? Or is there good way of cleaning the gold pins of the magsafe and the magsafe port on the macbook so they make better contact without needing to be held there?