We have a lab of windows machines that did work fine with LyX and the free Adobe pdf viewer. Today, we notice there is an update so that LyX View causes the PDF to build, then Adobe pops open, but it does not show the document, it just shows a list of recently viewed PDF.
We are allowed to File -> export (pdflatex) from LyX and view the file, so I'm sure the pdf system still works. I'm not surprised this comes up, as the Adobe pdf viewer has become more and more cumbersome, bothering us to use their cloud storage and so forth. I've looked and find same has happened to others over time, and suggestion seems to be "install Sumatra pdf viewer". In our lab, the problem is that the system admins refuse to install things except during the twice-per-year update period, so that's not a great option. I was hoping there is some setting or registry hack that will make this work again. Ideas? We have LyX version 2.1.3 Adobe Acrobat Reader DC (15.010.20056) pj -- Paul E. Johnson Professor, Political Science Director 1541 Lilac Lane, Room 504 Center for Research Methods University of Kansas University of Kansas http://pj.freefaculty.org http://crmda.ku.edu