This bug has disappeared for me after the following update (copy-paste from Synaptic History):
Removed the following packages: libgdome2-cpp-smart0c2a Upgraded the following packages: adwaita-icon-theme (3.16.2.1-2) to 3.18.0-2 gir1.2-gtk-2.0 (2.24.28-1) to 2.24.29-1 gir1.2-gtk-3.0 (3.16.6-1) to 3.18.6-1 gir1.2-gtk-vnc-2.0 (0.5.3-1.3) to 0.5.3-1.3+b1 gir1.2-gtkclutter-1.0 (1.4.4-3+b1) to 1.6.6-1 gir1.2-gtksource-3.0 (3.10.2-1) to 3.18.2-1 gir1.2-nmgtk-1.0 (0.9.8.8-1) to 1.0.10-1 gir1.2-vte-2.91 (0.40.2-2) to 0.42.1-2+b1 gpicview (0.2.4-1) to 0.2.4-2+b2 gtk-3-examples (3.16.6-1) to 3.18.6-1 gtk2-engines-pixbuf (2.24.28-1) to 2.24.29-1 libappindicator3-1 (0.4.92-3) to 0.4.92-3.1 libcolord-gtk1 (0.1.25-1.1) to 0.1.26-1 libgail18 (2.24.28-1) to 2.24.29-1 libgtk-3-0 (3.16.6-1) to 3.18.6-1 libgtk-3-bin (3.14.5-1) to 3.18.6-1 libgtk-3-common (3.16.6-1) to 3.18.6-1 libgtk-3-dev (3.16.6-1) to 3.18.6-1 libgtk-vnc-2.0-0 (0.5.3-1) to 0.5.3-1.3+b1 libgtk2.0-0 (2.24.28-1) to 2.24.29-1 libgtk2.0-0:i386 (2.24.28-1) to 2.24.29-1 libgtk2.0-bin (2.24.28-1) to 2.24.29-1 libgtk2.0-common (2.24.22-1) to 2.24.29-1 libgtk2.0-dev (2.24.28-1) to 2.24.29-1 libgtkmathview-bin (0.8.0-10) to 0.8.0-13 libgtkmathview0c2a (0.8.0-10) to 0.8.0-13 libgtkmm-3.0-1v5 (3.16.0-2+b1) to 3.18.0-1 libgtksourceview-3.0-1 (3.18.1-1) to 3.18.2-1 libgtksourceview-3.0-common (3.18.1-1) to 3.18.2-1 libgtksourceview-3.0-doc (3.10.2-1) to 3.18.2-1 libgtksourceview2.0-common (2.10.5-1) to 2.10.5-2 libjavascriptcoregtk-3.0-0 (2.4.7-1) to 2.4.9-3 libkeybinder0 (0.3.0-3) to 0.3.1-1 libnm-gtk-common (0.9.10.0-2) to 1.0.10-1 libnm-gtk0 (0.9.10.0-2) to 1.0.10-1 libvte-2.91-0 (0.40.2-2) to 0.42.1-2+b1 libvte-2.91-common (0.40.2-2) to 0.42.1-2 libwebkitgtk-3.0-0 (2.4.7-1) to 2.4.9-3 libwebkitgtk-3.0-common (2.4.7-1) to 2.4.9-3 libxrandr-dev (2:1.4.2-1+b1) to 2:1.5.0-1 libxrandr2 (2:1.4.2-1+b1) to 2:1.5.0-1 libxrandr2:i386 (2:1.4.2-1+b1) to 2:1.5.0-1 python-keybinder (0.3.0-3) to 0.3.1-1 xarchiver (1:0.5.2+20130119+dfsg-3) to 1:0.5.4-2 Installed the following packages: libgdome2-cpp-smart0v5 (0.2.6-6.2+b1) I think, that the problem was in gtk-3.0 libraries.