Hi, donno if this has been reported before... I get the follwing error message with the latest beta (2009-04-10): [..] {r:/tex/texmf/fonts/map/dvips/lm/lm-rm.map}] ! LuaTeX error r:/tex/texmf-context/tex/context/base/strc-not.lua:143: attempt to index field 'pagenumber' (a nil value) stack traceback: r:/tex/texmf-context/tex/context/base/strc-not.lua:143: in function 'deltapage' <main ctx instance>:1: in main chunk. \domovednote ...tructure.notes.deltapage("#1",#2)} \or \symbol [#3]\or \symbo... \dohighlow ...\scratchdimen \hbox {\dodohighlow #5 }}\ht \scratchbox \struthe... \dogotofixed ...reference {#2}#1\relax }}}\else #1 \fi } \gotopagespecial ...currenttargetpage {#4}\else #4 \fi \endgroup l.2 ... {page}{0}{}{\primaryreferencefoundaction} \doprocessreferenceelse ...eferenceprefix ","#1")} \doresetgotowhereever ... l.163 ...rd{PDF/X-4p}\MyFootnote{ISO 15930-7:2008} ? Same code works fine with beta 2009-04-06 (not tested with xp). Best wishes, Peter