Apache OpenOffice 4.0 versions have significant changes to your OpenOffice directory setup which effect your older OpenOffice profile. The Apache OpenOffice 4.0 Release Notes provide an explanation of these changes. However,you should have the opportunity to migrate your old profile settings to the new profile area.
Read complete article on Install Apache Openoffice 4.0.1 on CentOS, RHEL and Fedora systems. If you are running Libre-Office or Older version of Apache OpenOffice, We recommend to remove that from system.