diff --git a/admin-dev/themes/template/home/content.tpl b/admin-dev/themes/template/home/content.tpl
index 43ac4fbde..9b81d7400 100644
--- a/admin-dev/themes/template/home/content.tpl
+++ b/admin-dev/themes/template/home/content.tpl
@@ -27,9 +27,11 @@
 	<h1>{l s='Dashboard'}</h1>
 	<hr style="background-color: #812143;color: #812143;" />
 	{if $upgrade}
+		<div id="blockNewVersionCheck">
 		{if $upgrade->need_upgrade}
 			<div class="warning warn" style="margin-bottom:10px;"><h3>{l s ='New PrestaShop version available'} : <a style="text-decoration: underline;" href="{$upgrade->link}" target="_blank">{l s ='Download'} {$upgrade->version_name}</a> !</h3></div>
 		{/if}
+		</div>
 	{else}
 		<p>{l s ='Update notification unavailable'}</p>
 		<p>&nbsp;</p>
@@ -51,11 +53,28 @@ $(document).ready(function() {
 		if ($(this).is(':checked'))
 		{
 			$.ajax({
-				type: 'POST',
-				async: true,
-				url: 'ajax.php?toggleScreencast',
+				type : 'POST',
+				data : {
+					ajax : '1',
+					controller : 'AdminHome',
+					token : '{$token}',
+					id_employee : '{$employee->id}',
+					action : 'hideScreencast',
+				},
+				url: 'ajax-tab.php',
+				dataType : 'json',
 				success: function(data) {
+					if(!data)
+						alert("TECHNICAL ERROR - no return status found");
+					else if(data.status != "ok")
+						alert("TECHNICAL ERROR: "+data.msg);
+
 					$('#adminpresentation').slideUp('slow');
+					
+				},
+				error: function(data, textStatus, errorThrown)
+				{
+					alert("TECHNICAL ERROR: "+data);
 				}
 			});
 		}
@@ -88,6 +107,41 @@ $(document).ready(function() {
 	<div class="clear">&nbsp;</div>
 <script type="text/javascript">
 $(document).ready(function() {
+
+	if({$refresh_check_version})
+	{
+		$('#blockNewVersionCheck').hide();
+		$.ajax({
+			type : 'POST',
+			data : {
+				ajax : '1',
+				controller : 'AdminHome',
+				token : '{$token}',
+				id_employee : '{$employee->id}',
+				action : 'refreshCheckVersion',
+			},
+			url: 'ajax-tab.php',
+			dataType : 'json',
+			success: function(data) {
+				if(!data)
+					alert("TECHNICAL ERROR - no return status found");
+				else if(data.status != "ok")
+					alert("TECHNICAL ERROR: "+data.msg);
+				if(data.upgrade.need_upgrade)
+				{
+					$('#blockNewVersionCheck').children("a").attr('href',data.upgrade.link);
+					$('#blockNewVersionCheck').children("a").html(data.upgrade.link+"pouet");
+					$('#blockNewVersionCheck').fadeIn('slow');
+				}
+
+				
+			},
+			error: function(data, textStatus, errorThrown)
+			{
+				alert("TECHNICAL ERROR: "+data);
+			}
+		});
+	}
 	$.ajax({
 		url: "ajax-tab.php",
 		type: "POST",
@@ -99,12 +153,12 @@ $(document).ready(function() {
 		},
 		dataType: "json",
 		success: function(json) {
-
+		{if $employee->bo_show_screencast}
 			if (json.screencast != 'NOK')
 				$('#adminpresentation').fadeIn('slow');
 			else
 				$('#adminpresentation').fadeOut('slow');
-
+		{/if}
 			$('#partner_preactivation').fadeOut('slow', function() {
 				if (json.partner_preactivation != 'NOK')
 					$('#partner_preactivation').html(json.partner_preactivation);
@@ -123,7 +177,10 @@ $(document).ready(function() {
 		},
 		error: function(XMLHttpRequest, textStatus, errorThrown)
 		{
-			$('#adminpresentation').fadeOut('slow');
+			// don't show/hide screencast if it's deactivated
+			{if $employee->bo_show_screencast}
+				$('#adminpresentation').fadeOut('slow');
+			{/if}
 			$('#partner_preactivation').fadeOut('slow');
 			$('#discover_prestashop').fadeOut('slow');
 		}
diff --git a/classes/Upgrader.php b/classes/Upgrader.php
index c4c4c1327..6b0116ba7 100644
--- a/classes/Upgrader.php
+++ b/classes/Upgrader.php
@@ -48,6 +48,15 @@ class UpgraderCore
 	public $changelog;
 	public $md5;
 
+	public function __construct($autoload = false)
+	{
+		if ($autoload)
+		{
+			$this->loadFromConfig();
+			// checkPSVersion to get need_upgrade
+			$this->checkPSVersion();
+		}
+	}
 	public function __get($var)
 	{
 		if ($var == 'need_upgrade')
@@ -130,25 +139,7 @@ class UpgraderCore
 			}
 			}
 			else
-			{
-				$last_version_check = @unserialize(Configuration::get('PS_LAST_VERSION'));
-				if (isset($last_version_check['name']))
-				$this->version_name = $last_version_check['name'];
-				if (isset($last_version_check['num']))
-				$this->version_num = $last_version_check['num'];
-				if (isset($last_version_check['link']))
-				$this->link = $last_version_check['link'];
-				if (isset($last_version_check['autoupgrade']))
-				$this->autoupgrade = $last_version_check['autoupgrade'];
-				if (isset($last_version_check['autoupgrade_module']))
-				$this->autoupgrade_module = $last_version_check['autoupgrade_module'];
-				if (isset($last_version_check['md5']))
-				$this->md5 = $last_version_check['md5'];
-				if (isset($last_version_check['desc']))
-				$this->desc = $last_version_check['desc'];
-				if (isset($last_version_check['changelog']))
-				$this->changelog = $last_version_check['changelog'];
-			}
+				$this->loadFromConfig();
 		}
 		// retro-compatibility :
 		// return array(name,link) if you don't use the last version
@@ -162,6 +153,41 @@ class UpgraderCore
 			return false;
 	}
 
+	/**
+	 * load the last version informations stocked in base
+	 * 
+	 * @return $this
+	 */
+	public function loadFromConfig()
+	{
+		$last_version_check = @unserialize(Configuration::get('PS_LAST_VERSION'));
+		if($last_version_check)
+		{
+			if (isset($last_version_check['name']))
+				$this->version_name = $last_version_check['name'];
+			if (isset($last_version_check['num']))
+				$this->version_num = $last_version_check['num'];
+			if (isset($last_version_check['link']))
+				$this->link = $last_version_check['link'];
+			if (isset($last_version_check['autoupgrade']))
+				$this->autoupgrade = $last_version_check['autoupgrade'];
+			if (isset($last_version_check['autoupgrade_module']))
+				$this->autoupgrade_module = $last_version_check['autoupgrade_module'];
+			if (isset($last_version_check['md5']))
+				$this->md5 = $last_version_check['md5'];
+			if (isset($last_version_check['desc']))
+				$this->desc = $last_version_check['desc'];
+			if (isset($last_version_check['changelog']))
+				$this->changelog = $last_version_check['changelog'];
+		}
+		return $this;
+	}
+
+	/**
+	 * return an array of files 
+	 * that the md5file does not match to the original md5file (provided by $rss_md5file_link_dir )
+	 * @return void
+	 */
 	public function getChangedFilesList()
 	{
 		if (count($this->changed_files) == 0)
diff --git a/controllers/admin/AdminHomeController.php b/controllers/admin/AdminHomeController.php
index 927ff3ab7..ae51d4925 100644
--- a/controllers/admin/AdminHomeController.php
+++ b/controllers/admin/AdminHomeController.php
@@ -374,7 +374,20 @@ class AdminHomeControllerCore extends AdminController
 		return $content;
 	}
 
-
+	public function ajaxProcessRefreshCheckVersion()
+	{
+		$upgrade = new Upgrader(true);
+		if ($upgrade)
+		{
+			$json['status'] = 'ok';
+			$json['upgrade']['need_upgrade'] = $upgrade->need_upgrade;
+			$json['upgrade']['link'] = $upgrade->link;
+			$json['upgrade']['version_name'] = $upgrade->version_name;
+			$this->content = Tools::jsonEncode($json);
+		}
+		else
+			$this->content = '{"status":"error"}';
+	}
 	public function ajaxProcessHideOptimizationTips()
 	{
 		if (Configuration::updateValue('PS_HIDE_OPTIMIZATION_TIPS', 1))
@@ -438,6 +451,20 @@ class AdminHomeControllerCore extends AdminController
 		$this->content = Tools::jsonEncode($result);
 	}
 
+	public function ajaxProcessHideScreencast()
+	{
+		if ($employee = new Employee((int)Tools::getValue('id_employee')))
+		{
+			$employee->bo_show_screencast = 0;
+			if ($employee->save())
+				$this->content = '{"status":"ok"}';
+			else
+				$this->content = '{"status":"error","msg":"not saved"}';
+		}
+		else
+			$this->content = '{"status":"error", "msg":"employee does not exists"}';
+	}
+
 	public function getBlockPartners()
 	{
 		$stream_context = @stream_context_create(array('http' => array('method'=> 'GET', 'timeout' => AdminHomeController::TIPS_TIMEOUT)));
@@ -504,24 +531,32 @@ class AdminHomeControllerCore extends AdminController
 		$smarty->assign('isoUser',$isoUser);
 		$currency = $this->context->currency;
 		$upgrade = null;
+		$tpl_vars['refresh_check_version'] = 0;
 		if (@ini_get('allow_url_fopen'))
 		{
-			$upgrade = new Upgrader();
-			$upgrade->checkPSVersion();
+			$upgrade = new Upgrader(true);
+			// if this information is outdated, the version will be checked after page loading
+			if (Configuration::get('PS_LAST_VERSION_CHECK') 
+				< time() - (3600 * Upgrader::DEFAULT_CHECK_VERSION_DELAY_HOURS)) 
+				$tpl_vars['refresh_check_version'] = 1;
 		}
 
-		$smarty->assign('upgrade', $upgrade);
+		$tpl_vars['upgrade'] = $upgrade;
 
-		$smarty->assign('show_screencast', $this->context->employee->show_screencast);
-		$smarty->assign('quick_links', $this->getQuickLinks());
-		$smarty->assign('monthly_statistics', $this->getMonthlyStatistics());
-		$smarty->assign('customers_service', $this->getCustomersService());
-		$smarty->assign('stats_sales', $this->getStatsSales());
-		$smarty->assign('last_orders',$this->getLastOrders());
-		$smarty->assign('tips_optimization',  $this->_displayOptimizationTips());
+		if ($this->context->employee->bo_show_screencast)
+			$tpl_vars['employee_token'] = Tools::getAdminTokenLite('AdminEmployees');
+
+		$tpl_vars['employee'] = $this->context->employee;
+		$tpl_vars['quick_links'] = $this->getQuickLinks();
+		$tpl_vars['monthly_statistics'] = $this->getMonthlyStatistics();
+		$tpl_vars['customers_service'] = $this->getCustomersService();
+		$tpl_vars['stats_sales'] = $this->getStatsSales();
+		$tpl_vars['last_orders'] =$this->getLastOrders();
+		$tpl_vars['tips_optimization'] =  $this->_displayOptimizationTips();
 
 		$HOOK_BACKOFFICEHOME = Module::hookExec('backOfficeHome');
-		$smarty->assign('HOOK_BACKOFFICEHOME', $HOOK_BACKOFFICEHOME);
+		$tpl_vars['HOOK_BACKOFFICEHOME'] = $HOOK_BACKOFFICEHOME;
+		$smarty->assign($tpl_vars);
 
 	}
 }