migrating Wolfgang's flashcard example from mkii to mkiv, I changed all @@pp to v_page_target_ It was foreseeable that this is not sufficient: pages > flushing realpage 16, userpage 1 pages > flushing realpage 16, userpage 1 ! You can't use a prefix with `the character 1'. system > tex > error on line 58 in file testiv.tex: You can't use a prefix with ` ... 48 \setupbackgrounds[page][frame=on] 49 50 \starttext 51 52 \dorecurse{20} 53 {\startstandardmakeup[align=middle] 54 Front side \recurselevel 55 \stopstandardmakeup 56 \startstandardmakeup[align=middle] 57 Back side \recurselevel 58 >> \stopstandardmakeup} 59 60 \stoptext 61 <to be read again> 1 \arrangedpageN ->1 6 now I'm stuck. any help? code see http://wiki.contextgarden.net/User:Wolfgang_Schuster thanks Peter Herkenrath