The font problems with QT4 are not related to this issue but are caused by a bug in QT4 which makes it display all fonts without antialiasing when there is at least one font on the system for which antialiasing has been disabled. On Gutsy/Hardy there is at least one such font: ttf-arphic-uming. Either remove this font or apply the attached patch to /etc/fonts/conf.d/70-ttf-arphic-uming.conf.
The font problems with QT4 are not related to this issue but are caused by a bug in QT4 which makes it display all fonts without antialiasing when there is at least one font on the system for which antialiasing has been disabled. On Gutsy/Hardy there is at least one such font: ttf-arphic-uming. Either remove this font or apply the attached patch to /etc/fonts/ conf.d/ 70-ttf- arphic- uming.conf.