Howdy Thomas and Group, I am about to start on an update/upgrade of teTeX on a UNIX file server and would like to get thoughts on a TDS question that I have been mulling for a long time. Assume that one has a teTeX installation. Over time some of the packages (amstex, aastex, etc) are updated by their maintainers such that I need to replace the existing versions that came with teTeX. What is the tradition or general practice: - replace in the existing main texmf tree? - remove from the existing main texmf tree and replace in the local branch, in our case /apps/teTeX/jilatex/... as opposed to /apps/teTeX/texmf/... The same question applies to general use packages that are standard and available on CTAN, but not necessarily part of the teTeX distribution. In which branch should they go? I can see various arguments for both options. What I am trying to achieve here is to minimize the amount of re-installation of packages when I do an upgrade to teTeX without damaging the default customs related to the TDS. Suggestions? Thank you, Alan Dunwell !-------------------------------------------------------- !Reply to: ! Alan A. Dunwell, JILA Software Manager, ! JILA - CB440, Univ. of Colorado, Boulder,Co. 80309 ! E-Mail - [EMAIL PROTECTED] ! Voice - (303) 492-5308 FAX - (303) 492-5235 !--------------------------------------------------------