[NTG-context] "Invalid field" in Mark IV

[Aditya Mahajan]

On Wed, 13 May 2009, Flavien Lambert wrote:

> In the following example, it is the ";" that leads to the error
> \def\vect#1{%
>  \overrightarrow{#1}
> }
> \starttext
> $({\rm O};\vect{e_{x}})$
> \stoptext
>
> If you suppress it, it works fine. (???)

Taco, the error also occurs with cambria. So, by your definition, it is an 
engine error.

Aditya