2007/12/9, Greg Babic <greg_babic at yahoo.com.au>:
> \renewcommand{\ordscript}[1]{\textsuperscript{#1}}
Try
\renewcommand*{\ordscript}[1]{\protect\textsuperscript{#1}}
And please read http://www.chiark.greenend.org.uk/~sgtatham/bugs.html
Best
Martin