Hi there,

thanks to helpful answers from here (as always:) Adobe Garamond Pro does 
work now. But today a new problem arises, I hope I made this example 
minimal enough:

++++++++++++++++++++++++++
\setuplayout [grid=yes]


\usemodule[simplefonts]

\setmainfont[AGaramondPro]


\starttext

erscheint, aber stetig und beständig ist, hat vor Gott mehr Wert als 
das, das du zwar auch fortlaufend, doch ohne innere Überzeugung erfüllst.

\stoptext
++++++++++++++++++++++++++


It seems that gridding does not work properly here, as you see, we have 
an empty line after "zwar auch", why, and how to fix this? (If you do 
not have this font, look at the attachment.) And if the reason is not 
clear (as gridding conflicts some times with other rules without obvious 
reason), is there a workaround?


Thanks!
Huseyin