Ok, I've just attempted to install the 1.2-beta base set only to find 
that many of the binaries cause a segmentation violation.

  These include grep, egrep , find, getty and tar (These are just the 
ones I can remember offhand, tar being the most annoying of the lot!)

  The 1.2-beta tcsh binary works fine, and other base set binaries work 
fine too (ps, shutdown, mount ...)

  I am currently in the process of reinstalling the 1.2-alpha base set :(

Ale.