For all of you having this problem, try this, I found it by accident.
Make sure you have the latest version of Acrobat Reader installed. (not sure if this helps but this was one of the things I just did)
Instead of selecting file / print on a pdf file or a web pdf file (in safari) hit shortcut CMD P it brings up a different printer window ( the one from reader) normally when I hit file print, the preview window is blank, but when I hit CMD P the reader preview window shows the contents and allows me to print.
STRANGE BUT TRUE