This query will identify all the targets with the old date of update, which should be to identify the target in question is no longer active:

SELECT LIVEPOINTS.HWKEY ,ASSET.COMPUTERNAME ,LIVEPOINTS.DOMAIN_NAME ,LIVEPOINTS.IP_ADDRESSES ,LIVEPOINTS.LOGGED_USER ,LIVEPOINTS.USER_LANGUAGE ,LIVEPOINTS.OS_NAME ,LIVEPOINTS.TIMEZONE ,LIVEPOINTS.TARGET_VERSION ,LIVEPOINTS.LAST_UPDATE  FROM ASSET.LIVEPOINTS LIVEPOINTS LEFT OUTER JOIN ASSET.ASSET ASSET ON LIVEPOINTS.HWKEY = ASSET.HWKEY WHERE LIVEPOINTS.LAST_UPDATE < ‘2011-11-01 00:00:01’