Hi all, working on a book project with index and bibliography, I discovered two small bugs (at least I think they are bugs): 1. index sorts uppercase letters after lowercase letters. Minimal example: \starttext \index{Aardvark}Aardvark \index{azygous}azygous \page \setupregister[index][n=1] \placeregister[index] \stoptext I would expect azygous to follow Aardvark, but it is sorted before. 2. (Maybe not a bug, but a somewhat unfriendly behavior): When a \cite command refers to a non-existent key and sort=bbl, ConTeXt bombs out with a lua error: ! LuaTeX error ...text/tex/texmf-context/tex/context/base/bibl-tra.lua:77: attempt to compare nil with number stack traceback: ...text/tex/texmf-context/tex/context/base/bibl-tra.lua:77: in function <...text/tex/texmf-context/tex/context/base/bibl-tra.lua:76> [C]: in function 'sort' ...text/tex/texmf-context/tex/context/base/bibl-tra.lua:84: in function 'flush' <main ctx instance>:1: in main chunk. \typesetpubslist ...hacks.flush("\@@pbsorttype ")} \doendoflist \dodoplacepublications ...sttrue \typesetpubslist \inpublistfalse \endgroup ... l.37 \placepublications[criterium=all] minimal example (the typo \cite[clarke199] instead of \cite[clarke1999a] is there on purpose to demonstrate the problem): \setuppublications[state=start, sorttype=bbl, refcommand=authornum, numbering=yes] \setuppublicationlist[samplesize={VSdK90},totalnumber=2] \startpublication[k=champion2004,t=book, a={{Champion}},y=2004, n=10,s=Cha04] \author[]{Craige~B.}[C.~B.]{}{Champion} \pubyear{2004} \title{Cultural Politics in Polybius's {\em Histories}} \city{Berkeley} \pubname{Univ. of California Pr.} \stoppublication \startpublication[k=clarke1999a,t=book, a={{Clarke}},y=1999b, n=9,s=Cla99b] \author[]{Katherine}[K.]{}{Clarke} \pubyear{1999\maybeyear{b}} \title{Between Geography and History: Hellenistic Constructions of the Roman World} \city{Oxford} \pubname{Oxford UP} \stoppublication \starttext \cite[champion2004] \cite[clarke199] \page \placepublications[criterium=all] \stoptext Could this error be handled more gracefully, i.e. intercepted? All best Thomas