Hi Dov,
BTW, you are correct that I had the latest version of Acrobat Pro installed (11.0.10).
However, it did not work and would not upgrade.
A Key point, perhaps, is that the 11.0.10 patch only works after you delete the existing PDF printer.
This makes me wonder. Perhaps the Acrobat XI Pro install, and updates, will not replace or upgrade an existing PDF printer. In my case I clearly had a faulty PDF printer (perhaps a Microsoft OS default driver?).
Hope that helps...