Wolfgang, Thanks for the pointer. I don't have a cont-sys.tex, but cont-sys.rme has these lines % \runMPgraphicstrue % \runMPTEXgraphicstrue The .rme extension meant I'd missed it when I ran grep on the .tex files. I'll uncomment them. Oh, that's not a good idea, because the next context update will overwrite cont-sys.rme. So I should copy cont-sys.rme to cont-sys.tex first, then uncomment the lines in cont-sys.tex. But then a context update will overwrite cont-sys.rme, and the new version will be ignored because I have a cont-sys.tex. So maybe the best approach is to edit cont-sys.rme directly, then merge changes (using a revision control system like mercurial or git) that arrive with the new context distributions. -Sanjoy `Never underestimate the evil of which men of power are capable.' --Bertrand Russell, _War Crimes in Vietnam_, chapter 1.