“The last time you opened OpenOffice.org it unexpectedly quit while reopening windows. Do you want to try to reopen it’s windows again?
If you choose not to reopen windows, you may have to open and position the windows yourself.
[Don’t Reopen] [Reopen]”
And the buttons fail to respond, simply delete the folder
~/Library/Saved Application State/org.openoffice.script.savedState