When I connect my laptop to the AC adapter, the light does not turn on and it does not make a connection unless I fiddle with the cord right next to the connector, and even then sometimes it doesn't work. Currently I have the cord bent up over the connector and resting under the monitor for it to show up as connected in the menu indicator. And the light still isn't on. It's seen a fair share of use over the last 3 years but nothing I'd say is really harsh treatment. It practically still looks new. Is there something that I can do about this, or do I have to bite the bullet and just buy a new one?