OpenOffice.org 3.1.1 was released a few days ago, bringing many bug fixes to the stable 3.1 series. One of the ways to get it on Jaunty is to use the Launchpad.net PPA for OpenOffice.org Scribblers which recently packaged it for Ubuntu Jaunty and included it in their repositories.
To install the latest release using command-line, just use the instructions below:
First, edit the /etc/apt/sources.list file and enter your user password:
sudo nano /etc/apt/sources.list
Add the following two lines (the second one is not necessary, unless you want the sources to be available too):
deb http://ppa.launchpad.net/openoffice-pkgs/ppa/ubuntu jaunty main
deb-src http://ppa.launchpad.net/openoffice-pkgs/ppa/ubuntu jaunty main
Add the trusted key for these repositories:
sudo apt-key adv --keyserver keyserver.ubuntu.com --recv-keys 247D1CFF
Update the packages lists:
sudo apt-get update
You can eventually remove your existing OpenOffice installation by using the following two commands:
sudo apt-get remove --purge openoffice.org
sudo apt-get autoremove --purge
This will also remove system-wide configuration files.
Now, install OpenOffice.org 3.1.1:
sudo apt-get install openoffice.org
This should be all. You can run it by pressing Alt+F2 and typing openoffice in the run box.