Moin (means "friendly hallo to you" in northern parts of Germany),
I recently had a series of crashes worst of which was a startup
annoyance with scribus.
It came to halt with SIGSEGV on every startup.
Finally I identified libxine2 to cause the crash.
Please have a look at this bug-report:
http://bugs.scribus.net/view.php?id=12504#c32655
thank you