The Nimbus Mono, Nimbus Roman and Nimbus Sans font families, with the added Cyrillic and Greek glyphs didn't come with AFM files, and the ones we can generate are missing kerning and ligature information. It would be good if URW could supply us with AFM files as they did for the previous releases.
Should be fixed with the latest attachmenht to http://bugs.ghostscript.com/show_bug.cgi?id=696090
Fixed (I believe) in: http://git.ghostscript.com/?p=urw-core35-fonts.git;a=commitdiff;h=ee2beed6