I was sure that I'd read a paper on the legal history of Unix. So I did a Google search for it, and found a link to the PDF. The linked PDF was on the TUHS website :-) http://wiki.tuhs.org/lib/exe/fetch.php?media=publications:theses:gmp_thesis.pdf I'd better do a backup of my brain, as I've got a few flakey DRAM chips. Cheers, Warren