[xwiki-users] - trouble restarting xwiki

My first posting: I am unable to start my xwiki, (beta 4). I saw some discussions regarting this problem, but didn't quite see the solution. any help, plus help on exporting data without xwiki service running in case it does come back to life would be appreciated. -- 09> Started org.mortbay.jetty.Server@1198891 09:30:17,303 FATAL P1-19 http://ctaa.ct.med.ge.com:8080/xwiki/bin/view/Main/WebHome DBCPConnectionProvider:configure:191 - Could not create a DBCP pool org.apache.commons.dbcp.SQLNestedException: Cannot create PoolableConnectionFactory (User not found: SA) at org.apache.commons.dbcp.BasicDataSource.createDataSource(BasicDataSource.java:855) at org.apache.commons.dbcp.BasicDataSource.getConnection(BasicDataSource.java:540) at com.xpn.xwiki.store.DBCPConnectionProvider.configure(DBCPConnectionProvider.java:183) at org.hibernate.connection.ConnectionProviderFactory.newConnectionProvider(ConnectionProviderFactory.java:124) at org.hibernate.connection.ConnectionProviderFactory.newConnectionProvider(ConnectionProviderFactory.java:56) at org.hibernate.cfg.SettingsFactory.createConnectionProvider(SettingsFactory.java:366) at org.hibernate.cfg.SettingsFactory.buildSettings(SettingsFactory.java:60 John V. Skinner <John.skinner(a)med.ge.com> MICT Advanced Applications