Printing & Viewing problems in lyx-cjk

Dear Folk I have tried to generate DVI, PDF, PS and html files from Lyx-cjk and Lyx. Many things are fine in general, but I found a bug in lyx-cjk. It is OK in lyx. There is two symbols next 'P' in the Korean keyboard (Possibly in English and others as well^^): [ ] / with shift they become { }. When I generate files from lyx-cjk, the symbols [ ] are broken and are shown with some numbers. For example, if I write [test], it is generated in dvi, pdf, html as '91test93'. However, {test} seems fine. Generating PDF in openoffice and in lyx is fine, but, regrettably lyx-cjk causes this problem. I found this problem in lyx-cjk 1.2.0, but if i remember correctly, it seemed OK in lyx-cjk1.1.6. Thank you in advance. All the best, Jong-Hwa