I find problems with this piece of code ( texexec -v: TeXExec 5.2.3 - ConTeXt / PRAGMA ADE 1997-2004) \starttext \bTABLE \bTR \bTD one \eTD \bTD two \eTD \eTR \bTR \bTD three fout five six seven eight nine \eTD \bTD ten \eTD \eTR \eTABLE \stoptext The log say ! Undefined control sequence. <argument> \@@tblprefix \c!each \v!each \getvalue #1->\csname #1 \endcsname \setupTBLcell ...e {\@@tblprefix \c!each \v!each } \getvalue {\@@tblprefix \c... \handleTBLcell ...ox \hbox {\setupTBLcell {#1}{#2} \localframed [\@@tbl \@@tb... <inserted text> ...bl \begintblrow \makeTBL {1}{1} \nexttblcol \makeTBL {1}{2... \endTBL ...x {\trialtypesettingtrue \the \tbltoks }\ifautoTBLspread \checktb... ... l.5 \eTABLE