[Scribus] Scribus Cashes ???

[Roger]

Hi all
Had the dreaded 'Scribus Crashes with fault 11" with 1.3.3.10svn and now this 
afternoon with 1.3.4

What does it mean?
  what causes it?
  is it a conflict with something else?
  how can I fix it

I already lost some work through not saving every few minutes but I cant take 
blame for this as I have been lulled into a deserved sense of security by 
Scribus not faulting until yesterday.
The only upgrade on my machine is cups all else is standard installation from 
the cd.

I'll test with valgrind, etc.

TIA
Roger