I misspoke: the 4.6.2 install that works is from the Wiki binaries and not hpc.sourceforge.net. Anyway, the silence must mean no interest in supporting my "old" platform (hardware 7 years, OS 5). I still use it because it's a 64-bit 2.5Ghz quad-core with 16GB RAM and 10K RPM drive making it quite competitive with even today's desktops. Al