I am having the same problem and non of the solutions listed here have
worked. I just upgraded to AdobeCC, reinstalled my LiveCycle ES4 and
found that I no longer can preview with PDF. Anoying, but I save the
form open my AcrobatDC Reader, check the form, then make the
adjustments. It's extra time and extra clicks which really bothers me.
And yes Adobe does not seem to want to support LiveCycle. Because I've
created so many forms with this program, it would be a real pain to have
to redo everyth...