I found on my SL-C3000, the default text editor cannot display any double-byte-encoded characters in UTF-8 encoding text file after I set all options in "Code Preferences" to UTF-8: all asian characters, including chinese, korean and japanese, are displayed as empty squares. The change of font size doesn't help. However most of these asian characters can be properly displayed by the "cat" command in the default Terminal. Anyone knows where the problem is? Thanks a lot!