>Where can I get the "rc-72 client" referred to by sandor? None of my >searches have turned up a source. > >WDunwiddie It's actually "rc5-72", which may be why your searches didn't work: I found it at the following link. Both OS 9 and OS X clients are available there: <http://www.distributed.net/download/clients.html> Documentation can be accessed from that page as well. I seem to be running it fine; however, I don't know what to expect in the event that there is a calculation error. I guess I'm looking for some sort of 'selftest' mode. Apparently there is a built-in test functionality but haven't figured out how to access it yet. As far as I can tell, the program tests only the integer-calculating units in your processor (not the floating point units). Best, Gene (digest mode)