popup mystery

[Friedrich F. Grohmann]

I've created two identical popup buttons on the same card. The only 
difference between them consists in the language/font of the menu items: 
the items of popE are in English, those of popC in Chinese (with the 
button font specified as "Apple LiSung Light,Chinese").

popE displays all the items as expected, while popC behaves in a rather 
surprising fashion: a) the items, which appear perfectly fine in the 
button inspector, turn into the dreaded "garbage"; b) the button does not 
show up as a list at all, but depending on where one clicks individual 
lines appear.

Is there any way to overcome this unfortunate situation?

Working on a G4 PowerBook with Panther. 

Fritz