On Fri, 24 Nov 2017, Rich Shepard wrote: > I can do this and restore from a backup if necessary. I removed /usr/share/texmf/ and left ../../texmf-config/, ../../texmf-dist/, ../../texmf-local/, and ../../texmf-var/. Copied the latest beamer version to ../../texmf-dist/tex/latex/beamer/. Rich