I have exactly the same problem.
I am also affected by Bug 457220 which crashes oowriter when saving notes in .doc format. Maybe this two Bugs are connected somehow.
Linux arne-laptop 2.6.31-14-generic #48-Ubuntu SMP Fri Oct 16 14:04:26 UTC 2009 i686 GNU/Linux
calc version: openoffice.org-core 1:3.1.1-5ubuntu1
I have exactly the same problem.
I am also affected by Bug 457220 which crashes oowriter when saving notes in .doc format. Maybe this two Bugs are connected somehow.
Linux arne-laptop 2.6.31-14-generic #48-Ubuntu SMP Fri Oct 16 14:04:26 UTC 2009 i686 GNU/Linux
calc version: openoffice.org-core 1:3.1.1-5ubuntu1