The document I have been working on has built the index fine in the past. I have since made some changes to Part and Chapters, and re-arranged things in the preamble a little. Now pdflatex, mkindex, pdflatex fails with the following error:
Undefined control sequence. l.3 \makeatletter\scan@allowedfalse
Undefined control sequence. l.6 \item Acceptance set\pfill
Undefined control sequence. l.7 ...cceptance setand demand for insurance\pfill
I am using the index package as so in my preamble (I have tried moving it around heaps with no effect)
the preamble is here: http://pastebin.com/ng47YuZh
TIA

\index, remove any.indand.idxfiles and try again. – Caramdir Apr 8 '11 at 1:52