All, Hans recommended I contact the list with my inquiry. I'm running Leopard on a Mac, using Mactex, texlive 2008. I've updated my context with: sudo ctxtools --updatecontext On a first run of ctxtools, I get this error: loading : ConTeXt Core Macros / Environments ! Undefined control sequence. <argument> ...def \@EA \noexpand \csname \e!start \v!setups \endcsname {\beg... \expanded ...\long \xdef \@@expanded {\noexpand #1 }\@@expanded l.212 ...xpand\csname\e!stop\v!setups\endcsname}}} I hit "s" several time to scroll through the errors til it finishes, then run the command again: sudo ctxtools --updatecontext This time it seems to complete with no errors. This seem OK to folks? Now, I'd like to give MKIV a try. I see the following instructions: http://wiki.contextgarden.net/Running_Mark_IV Are they adequate for my platform? That is, will they work if I follow them to the letter? Or do folks have other advice? Thanks. David Arnold College of the Redwoods Mathematics Department Eureka, CA 95501 (707) 476-4222 http://msemac.redwoods.edu/~darnold/index.php