Hallo, I made some tests and want to report: ---------------------------------------------------------------- 1.) 'letter-17.tex' with pdftex (ConTeXt ver: 2007.07.29 22:06 MKII fmt: 2008.4.10 int: english/english) ! Undefined control sequence. \letterstopoptimizeyes ...er!value!skip \minustwo \else \ifdim \pagetotal <.... \next2 #1,->\dosetups {#1} \doprocesscommaitem \doprocesscommalist ...item \gobbleoneargument #1, ]\relax \global \advance \... \@@su:letter:place ...r] \setups [letter:sequence] \setups [letter:finish] \next1 #1,->\dosetups {#1} \doprocesscommaitem \doprocesscommalist ...item \gobbleoneargument #1, ]\relax \global \advance \... ... l.38 \stopletter ---------------------------------------------------------------- 2.) 'letter-17.tex' with luatex (ConTeXt ver: 2008.04.11 00:07 MKIV fmt: 2008.4.11 int: english/english) system : module t-letter not found ! Undefined control sequence. l.5 \setupletterstyle but kpsewhich t-letter d:/context/tex/texmf-project/tex/context/third/letter/base/t- letter.tex ---------------------------------------------------------------- 3.) 'letter-17.tex' with pdftex (ConTeXt ver: 2008.04.11 00:07 MKII fmt: 2008.4.11 int: english/english) same error as 1.) ---------------------------------------------------------------- Has there something changed in the file finding mechanism since 04.11.? Maybe the strange behaviour of mplib is related to this. Wolfgang