Or does Apple still fix computers with this problem even after december, 2012?
You are likely right on with your diagnosis. And yes, the program has ended. There have been reports of free fixes since that time, but I haven't seen one in awhile. That shouldn't stop you from trying to sweet-talk someone at the "genius" bar, or his/her manager, into doing the repair. They can at least test it and tell you if that's the issue for sure. Good luck.