Dear list, I was attempted to install 2.7.1 in my mac only recently because of the fantastic quartz display support. I had no problem in building from source. But after installation, I always got font warnings as following when using quartz: Warning messages: 1: In axis(side = side, at = at, labels = labels, ...) ... : no font could be found for family "Arial" .... 33: In axis(side = side, at = at, labels = labels, ...) ... : no font could be found for family "Arial" 34: In title(...) ... : no font could be found for family "Arial" 35: In title(...) ... : no font could be found for family "Arial" 36: In title(...) ... : no font could be found for family "Arial" 37: In title(...) ... : no font could be found for family "Arial" There is no such problem when using X11 as the display device. I was guessing it might be cairo or fontconfig library? I looked into the configure file and found warnings: ld: warning, duplicate dylib /opt/local/lib/libiconv.2.dylib ld: warning, duplicate dylib /opt/local/lib/libz.1.dylib ld: warning, duplicate dylib /opt/local/lib/libfontconfig.1.dylib ld: warning, duplicate dylib /opt/local/lib/libXrender.1.dylib ld: warning, duplicate dylib /usr/X11/lib/libSM.6.dylib ld: warning, duplicate dylib /usr/X11/lib/libICE.6.dylib ld: warning, duplicate dylib /usr/X11/lib/libX11.6.dylib ld: warning, duplicate dylib /usr/local/lib/libfreetype.6.dylib I used macport to install cairo and pango and gtk before, and I think these libraries are duplicated in /usr/lib somehow. I don't know if R looked into the wrong directory to search for libraries or not. Please advise! Thanks a lot. -- Zhesi He Graham Group, CNAP Department of Biology (Area 7) University of York PO Box 373, York YO10 5YW, UK Phone: +44-(0)1904-328774 Email: zh107 at york.ac.uk