> > A run with a hand-coded qt program, it works fine. > > Apparently the problem lies within Qt Designer. > > I will try that in a minute...
I failed to fix the problem: Postgresql and Mysql work fine, but I still could not activate them within QtDesigner. Removing and reinstalling mysql and its plugins: the problem is still there. I assume it is a correct way to 'recompile' the plugin against the new Qt 3.0.5. Pls correct me, if it is wrong. As I downgraded my KDE to 3.0.3, the problem was solved! Perhaps we can classify it as a Qt designer's bug(?) Regards, Setyo Nugroho