Bold Chinese characters show badly in preview（粗體中文字元在投影片放映畫面中效果不佳）

[Ｖ字龍(Vdragon)]

screenshots
in the editor
http://ind.ntou.edu.tw/~pika1021/picture_cache/libreoffice_impress_bug/impress_editor.png
in the "投影片放映"
http://ind.ntou.edu.tw/~pika1021/picture_cache/libreoffice_impress_bug/impress_preview.png

pretty different, isn't it?

ProblemType: Bug
DistroRelease: Ubuntu 11.04
Package: libreoffice-core 1:3.3.3-1ubuntu2
ProcVersionSignature: Ubuntu 2.6.38-8.42-generic 2.6.38.2
Uname: Linux 2.6.38-8-generic x86_64
NonfreeKernelModules: nvidia
Architecture: amd64
Date: Thu Aug 25 12:00:34 2011
InstallationMedia: Kubuntu 11.04 "Natty Narwhal" - Release amd64 (20110427)
ProcEnviron:
 LANGUAGE=zh_TW:en
 LANG=zh_TW.UTF-8
 SHELL=/bin/bash
SourcePackage: libreoffice
UpgradeStatus: No upgrade log present (probably fresh install)

[Yao Wei (medicalwei)]

By the way, if we use the typeface with bold variant, this may not reproduced.

This bug is reproducible in Debian package libreoffice-impress 1:3.3.4-2