diff -ru zabbix-1.6.4/frontends/php/include/defines.inc.php zabbix-1.6.4-patched/frontends/php/include/defines.inc.php
--- zabbix-1.6.4/frontends/php/include/defines.inc.php	2009-04-03 16:44:06.000000000 +0200
+++ zabbix-1.6.4-patched/frontends/php/include/defines.inc.php	2009-05-06 10:21:02.000000000 +0200
@@ -40,6 +40,7 @@
 	define('EVENTS_OPTION_NOT_ACK',			3);		//	use 0 to disable
 	define('EVENTS_OPTION_ONLYTRUE_NOTACK',	4);		//	use 0 to disable
 	define('EVENTS_OPTION_NOFALSEFORB',		5);		//  reserved for TRIGGERS_OPTION_NOFALSEFORB, to disable set TRIGGERS_OPTION_NOFALSEFORB to 0
+	define('EVENTS_OPTION_EVENT_LAST',              6);
 
 	define('ZBX_MIN_PERIOD', 3600);					// ~1 hour
 	define('ZBX_MAX_PERIOD', 12*31*24*3600);		// ~1 year
diff -ru zabbix-1.6.4/frontends/php/include/locales/en_gb.inc.php zabbix-1.6.4-patched/frontends/php/include/locales/en_gb.inc.php
--- zabbix-1.6.4/frontends/php/include/locales/en_gb.inc.php	2009-04-03 16:44:06.000000000 +0200
+++ zabbix-1.6.4-patched/frontends/php/include/locales/en_gb.inc.php	2009-05-06 10:23:43.000000000 +0200
@@ -1493,6 +1493,7 @@
 	'S_SHOW_NOFALSEFORB'=>				'Show all(no FALSE for B)',
 	'S_SHOW_UNACKNOWLEDGED'=>			'Show unacknowledged',
 	'S_SHOW_PROBLEM_UNACKNOWLEDGED'=>	'Show problem-unacknowledged',
+	'S_SHOW_PROBLEM_EVENT_LAST'=>           'Show Last',
 	'S_NOT_ACKNOWLEDGED'=>				'Not acknowledged',
 	'S_HIDE_DETAILS'=>					'Hide details',
 	'S_SHOW_DETAILS'=>					'Show details',
diff -ru zabbix-1.6.4/frontends/php/tr_status.php zabbix-1.6.4-patched/frontends/php/tr_status.php
--- zabbix-1.6.4/frontends/php/tr_status.php	2009-04-03 16:44:07.000000000 +0200
+++ zabbix-1.6.4-patched/frontends/php/tr_status.php	2009-05-06 14:41:31.000000000 +0200
@@ -308,6 +308,9 @@
 	if(EVENTS_OPTION_ONLYTRUE_NOTACK && $config['event_ack_enable']){
 		$ev_select->AddItem(EVENTS_OPTION_ONLYTRUE_NOTACK,S_SHOW_PROBLEM_UNACKNOWLEDGED.SPACE.'('.$config['event_expire'].SPACE.(($config['event_expire']>1)?S_DAYS:S_DAY).')');
 	}
+	if(EVENTS_OPTION_EVENT_LAST && $config['event_ack_enable']){
+		$ev_select->addItem(EVENTS_OPTION_EVENT_LAST,S_SHOW_PROBLEM_EVENT_LAST.SPACE);
+	}
 
 //------- JP -------
 	if($show_triggers==TRIGGERS_OPTION_NOFALSEFORB){
@@ -406,6 +409,7 @@
 
 	$triggers_num = 0;
 	$cond_event = '';
+	$join_event = '';
 	$event_expire = ($config['event_expire']*86400); // days
 	switch($show_events){
 		case EVENTS_OPTION_ALL:
@@ -420,6 +424,10 @@
 		case EVENTS_OPTION_NOFALSEFORB:
 			$cond_event.=' AND e.acknowledged=0 AND ((e.value='.TRIGGER_VALUE_TRUE.') OR ((e.value='.TRIGGER_VALUE_FALSE.') AND t.type='.TRIGGER_MULT_EVENT_DISABLED.'))';
 			break;
+		case EVENTS_OPTION_EVENT_LAST:
+			$join_event.=' LEFT JOIN events e2 ON e.objectid = e2.objectid AND e.clock < e2.clock ';
+			$cond_event.=' AND e2.objectid IS NULL ';
+			break;
 		case EVENTS_OPTION_NOEVENT:
 		default:
 			$cond_event.=' AND 1=2 ';
@@ -444,10 +452,10 @@
 		if(trigger_dependent($row["triggerid"]))	continue;
 
 		$event_sql = 'SELECT e.eventid, e.value, e.clock, e.objectid as triggerid, e.acknowledged, t.type '.
-					' FROM events e, triggers t '.
+					' FROM events e JOIN triggers t ON t.triggerid=e.objectid '.
+					$join_event.
 					' WHERE e.object='.EVENT_SOURCE_TRIGGERS.
 						' AND e.objectid='.$row['triggerid'].
-						' AND t.triggerid=e.objectid '.
 						$cond_event.
 					' ORDER by e.object DESC, e.objectid DESC, e.eventid DESC';
 		if($show_triggers == TRIGGERS_OPTION_NOFALSEFORB){