It seems to be related with a QT_ACCESSIBiLITY bug:
https://bugs.launchpad.net/ubuntu/+source/at-spi2-core/+bug/877358
I could reproduce the problem in lxde, unity 2d and unity 3d (12.04 up-to-date 32 & 64 bit)
QT_ACCESSIBILITY=0 scribus
allways solves the problem.
It seems to be related with a QT_ACCESSIBiLITY bug:
https:/ /bugs.launchpad .net/ubuntu/ +source/ at-spi2- core/+bug/ 877358
I could reproduce the problem in lxde, unity 2d and unity 3d (12.04 up-to-date 32 & 64 bit)
QT_ACCESSIBILITY=0 scribus
allways solves the problem.