Hello, please consider the following example: <example file="ex8.tex"> \starttext \font\test=txr \test abs \stoptext </example> I process this document with context (context --version -> 2012.01.25) nothing suspecious in terminal output but in log file I see "checksum mismatch", <terminal> $ grep 'checksum' ex8.log checksum mismatch in font txr.vf ignored </terminal> Simple plain tex file <example file="ex9.tex"> \font\test=txr \test abs \bye </example> processed by luatex and pdftex engines (both from TeX Live 2011, I don't know how to generate formats for them in context suite) doesn't give same message. Is it a "bug" in font system of context? P.S. There is a thread on tex-live mailing list about "checksum mismatch", I took a little investigation that reveals the source of problem: 'luaotfload', adaptation of context font system for latex world. As you can see from "ex8.tex", current context have the same behaviour. I'm not fully sure if it is save to ignore this message (I read briefly about vf fonts here: http://www.tex.ac.uk/tex-archive/help/virtual-fonts.knuth) but as both pdftex and luatex engines give nothing on "plain" example I want to report about this issue. -- WBR, Vladimir Lomov -- That's the thing about people who think they hate computers. What they really hate is lousy programmers. -- Larry Niven and Jerry Pournelle in "Oath of Fealty"