Hi,
I have to say this openoffice beta that comes with FC 4 is not really stable. I am wondering why FC4 includes that rather than the stable 1.1.x version.
I had that same problem with OOo 2 beta which comes with FC4 (it crashes when saving documents) on some machines, but I have other machines where it worked flawlessly (!). For now, I've uninstalled FC4 OOo from the machines where it crashes and installed OOo 2 beta (1.9 build 122) downloaded from the official site. Haven't got any problems till now.
[]'s Marcelo