Ok, I found the problem. There is a java script error on the rendered page ';' expected
The error occurs while setting the font array. There is an entry
SFX_fontNameArray[357] = 'Some's Style';
Where is an apostrophe in the font name.
I think it's the same error as described in http://community.softwarefx.com/forums/p/9572/22973.aspx#22973
Is it possible to disable the generation of the font array ? Why do you create it with all fonts ?
I could delete the regarding font from my computer, but is there another solution ?