Full_Name: Vaidotas Zemlys Version: 2.5.1 OS: Ubuntu 7.04 Submission from: (NULL) (213.197.173.50) Hi, There is a mistake in ISOLatin7.enc file which is shipped with grDevices package. Instead of Umacron and umacron there are Ucirmcumflex and ucirmcumflex. There is no U cirmcumflex in ISO Latin 7 encoding, as can be seen in http://en.wikipedia.org/wiki/ISO/IEC_8859-13 and I also can report this as native Lithuanian speaker, since ISO Latin 7 encoding is used for Lithuanian and Latvian languages. Steps to reproduce 1. In R issue commands : postscript(file="test.ps",encoding="ISOLatin7") plot(rnorm(100),main="Ūū") dev.off() When viewing postcript file instead of Ūū you will see ??. Changing [uU]circumflex to [uU]macron in file ISOLatin7.enc fixes the problem.