> Martin Chicoine schrieb:
> > Also, using pstricks-add and the vtex option for pstricks resulted in
> the
> > error "Option clash for package pstricks".
>
> then you load the packages in the wrong order!
>
> \usepackage[vtex]{pstricks}
> \usepackage{pstricks-add}
>
> is the right one.
>
In fact, it is because I was also loading pst-func.