I have a macbook laptop, and experienced a failure of the connection at the junction where the cord leads into the magnetic brick. This shows how crappy the chargers mac make are. I need some advice if there is anything I can do fix it. The plastic part was gone, and the wire was exposed. I really don't want to waste my money on a new magsafe adapter based on how bad these things seem to be. So is there a possible fix or a better possibly cheaper alternative? Thanks.