Hi all,

With the latest beta, the issue with the size of the gentium font is solved but till there is still an issue with the distance between "Hello" and "World"
I tested this with the following example

\usetypescript[gentium]
\starttext
Hello \switchtobodyfont[gentium] World
\stoptext

and ConTeXt version 
ConTeXt  ver: 2010.05.27 13:47 MKIV  fmt: 2010.5.27  int: english/english
LuaTeX, Version beta-0.60.1-2010042810.

Please see the attached PDF file. (Working on Mac OS X 10.6.3, gentium.ttf Version 1.02; 2005; OFL release).

Best regards: OK