using 'Exec=UBUNTU_MENUPROXY=0 inkscape' in inkscap.desktop no longer works for me. (since today's Inkscape update (Inkscape 0.48.3.1-1ubuntu6.1))
using 'Exec=UBUNTU_ MENUPROXY= 0 inkscape' in inkscap.desktop no longer works for me. 1-1ubuntu6. 1))
(since today's Inkscape update (Inkscape 0.48.3.