You might want to run 'apt-get -f install' to correct these:
The following packages have unmet dependencies:
 libqt4-designer:i386 : Depends: libqt4-script:i386 (= 4:4.8.1-0ubuntu4) but 4:4.8.1-0ubuntu4.1 is to be installed
                        Depends: libqt4-xml:i386 (= 4:4.8.1-0ubuntu4) but 4:4.8.1-0ubuntu4.1 is to be installed
                        Depends: libqtcore4:i386 (= 4:4.8.1-0ubuntu4) but 4:4.8.1-0ubuntu4.1 is to be installed
                        Depends: libqtgui4:i386 (= 4:4.8.1-0ubuntu4) but 4:4.8.1-0ubuntu4.1 is to be installed
 libqt4-qt3support:i386 : Depends: libqt4-designer:i386 (= 4:4.8.1-0ubuntu4.1) but 4:4.8.1-0ubuntu4 is to be installed
 python-qt4 : Depends: libqt4-designer (>= 4:4.8.0-1~) but it is not going to be installed
E: Unmet dependencies. Try 'apt-get -f install' with no packages (or specify a solution).