Hi all, With the minimals (ConTeXt ver: 2008.11.10 21:40 MKIV fmt: 2008.11.12 int: english/english) and mkiv, I get from time to time: (cont-sys.tex ! Undefined control sequence. l.123 \recycleMPslotstrue but, despite this, a correct PDF is produced, when I hit return in order to ignore the error. For instance this happens with the example given by Hans: \starttext \showstruts \start \tf \setstrut tf:\strut \tfa \setstrut tfa:\strut \tfb \setstrut tfb:\strut \tfc \setstrut tfc:\strut \tfd \setstrut tfd:\strut \stop \start \small \tf \setstrut tf:\strut \tfa \setstrut tfa:\strut \tfb \setstrut tfb:\strut \tfc \setstrut tfc:\strut \tfd \setstrut tfd:\strut \stop \stoptext I guess this is a dormant (conflicting?) thing from mkii… Best regards: OK