help me internet you are my only hope

Also, argh, my laptop charger isn't working for some reason. I'm using a Mac, and it's a pretty new one (read: a couple of months old). I don't think it's any of the issues given here -- strain relief seems the most likely, but given that I've been waggling the cord around without any results it doesn't seem plausible. Have any of you experienced this? WHAT CAN I DO TO STOP IT ARGH.