Hello, I found a critical bug in CJK-LyX-1.3.0 (up to the version '3') regarding to 'tex command inset'. So I urge all CJK-LyX users to upgrade to the latest 'CJK-LyX-1.3.0-4' which can be downloaded at the ftp site,
ftp://stone.phys.pusan.ac.kr/pub/CJK-LyX . Sorry for the inconveniences this may cause. cghan