Thanks Aditya, that worked perfectly.
Roger
Aditya Mahajan <aditya.mahajan at alumni.iitk.ac.in> writes:
> \DeclareGraphicsRule is defined in graphicx.sty. You are using the
> declaration before including the package. Just put the line
>
> \usepackage{graphicx}
>
> before \DeclareGraphicsRule
>
> and it should work fine.
>
> HTH,
> Aditya