Printing duplex top-to-top will randomly print top-to-bottom (flipping the pages).

Pages are portrait orientation.  Only happens when printing the PDF (Acrobat XI Pro) and never from Word.  Not always the same pages.  Have opened document on another computer with the same version of XI Pro and it printed correctly.  Went back to the original computer and it printed correctly.  Other documents will have the problem as well and seems to be getting increasingly worse. 

Could there be a fix to this?  I keep searching and don't see any other problems like this.

Thanks.