Comment 5 for bug 539075

If you see the radio buttons with the default gtk theme, you could to test the Clearlooks engine itself without the custom theme used by Inkscape.app by using the gtk-demo application that gets installed with GTK+:

open a terminal and type this command (on one line, without the leading '$')

$ GTK2_RC_FILES="/opt/local/share/themes/Clearlooks/gtk-2.0/gtkrc" gtk-demo

click on the demo widget 'Printing' in the list on the left side: Do you see the radio buttons in the print dialog e.g. in the 'Range' section with the number of pages to be printed? If they are missing it is not a bug in Inkscape but likely in the theme engine itself when built with the GTK+/Quartz module.