This is TeXk, Version 3.14159 (Web2C 7.3.11) (format=tex 2002.11.14) 30 NOV 2002 07:11 %&-line parsing enabled. **mpx19363.tex (./mpx19363.tex ! Undefined control sequence. \hbox {\hbox {\Huge }\vrule width1sp} \next #1->\setbox \z@ \hbox {#1 }\finsm@sh l.2 \Huge}\vrule width1sp}} } The control sequence at the end of the top line of your error message was never \def'ed. If you have misspelled it (e.g., `\hobx'), type `I' and the correct spelling (e.g., `I\hbox'). Otherwise just continue, and I'll forget about whatever was undefined. [1] [1] [1] [1] [1] [1] [1] [1] ) Output written on mpx19363.dvi (8 pages, 784 bytes).