Interesting. I guess it is not the dd* functions.

Anyway, here is a link to the Fox 2.6a help file.

http://download.microsoft.com/download/fox26dos/patch6/1/DOS/EN-US/fpwhlp.exe

>@ 7.429,7.250 EDIT m.descr ;
> SIZE 2.500,81.000,0.000 ;
> DEFAULT " " ;
> FONT "Courier New", 8 ;
> SCROLL ;
> DISABLE ;
> COLOR ,RGB(,,,255,255,255)
>
>Variable not found error persist
>
>
>A runtime Error Has Occurred.
>
>No other error information available