All,
After installing context minimals, this no longer compiles with MKII:
\usemodule[tikz]
\starttext
\starttikzpicture
\draw[gray] (-5,-5) grid (5,5);
\stoptikzpicture
\stoptext
system : module tikz loaded
(./tikz.tex
system : module tikz (line 2) already loaded
publications : file tikz.bbl not found, waiting for bibtex
systems : begin file tikz at line 3
! Undefined control sequence.
l.5 \starttikzpicture