Since I bought my Macbook Pro back in Aug 2008, I have never experienced a single problem. Just a few weeks ago, I noticed that my magsafe adapter wasn't charging my laptop. When I plug it in, my mac recognizes that it's plugged in, but it's not charging. There is not even a light on the plug. I've discovered that if I smack my adapter, it works and starts charging my laptop. When it's charged, I can use my mac as if nothing had ever happened. However, my battery's condition is set to "fair" so I don't know if thats causing it to malfunction. Is it a magsafe issue? Is my battery causing it to malfunction? or what? Please help. I got no applecare and it's out of warranty too.