Macbook Display Port VGA Adapter Doesn't Work

Google as I might, nobody would tell me that the adapter had firmware that could be out of date. Eventually, I found a reference to the idea in the form of an updater that would not work.

The important thing is that I realized that if you cannot use your Macbook for presentations on a VGA projector or display, it might be that you simply need to buy a new one.

I did and now it works.