I copied the binary from pcb-20060414/src/pcb-bin to /usr/local/bin/pcb and now it works fine. I can load a layout. The only flaw is that it says at the startup "stdin:1: /usr/local/bin/gm4: Cannot open default_font: No such file or directory" and in the PCB Log window: "illegal fileformat Can't find font-symbol-file 'default_font'" CL<