diff --git a/lang/en_US.php b/lang/en_US.php
index 4292f840a..bdbbb30cc 100644
--- a/lang/en_US.php
+++ b/lang/en_US.php
@@ -27,7 +27,7 @@ $lang['en_US']['ImageUploader']['DELETE'] = array(
 );
 $lang['en_US']['ImageUploader']['CLICKREMOVE'] = array(
 	'Click the button below to remove this %s.',
-	
+	
 								PR_MEDIUM,
 	'... this image/file'
 );
@@ -62,7 +62,7 @@ $lang['en_US']['SiteTree']['METADESC'] = 'Description';
 $lang['en_US']['SiteTree']['METAKEYWORDS'] = 'Keywords';
 $lang['en_US']['SiteTree']['METAADVANCEDHEADER'] = 'Advanced Options...';
 $lang['en_US']['SiteTree']['METAEXTRA'] = 'Custom Meta Tags';
-$lang['en_US']['SiteTree']['METANOTEPRIORITY'] = 'Manually specify a Priority for this page: 
+$lang['en_US']['SiteTree']['METANOTEPRIORITY'] = 'Manually specify a Priority for this page: 
 											(valid values are from 0 to 1, a zero will remove this page from the index)';
 $lang['en_US']['SiteTree']['METAPAGEPRIO'] = 'Page Priority';
 $lang['en_US']['SiteTree']['PAGETYPE'] = array(
@@ -73,7 +73,7 @@ $lang['en_US']['SiteTree']['PAGETYPE'] = array(
 $lang['en_US']['SiteTree']['SHOWINMENUS'] = 'Show in menus?';
 $lang['en_US']['SiteTree']['SHOWINSEARCH'] = 'Show in search?';
 $lang['en_US']['SiteTree']['ALLOWCOMMENTS'] = 'Allow comments on this page?';
-$lang['en_US']['SiteTree']['NOTEUSEASHOMEPAGE'] = 'Use this page as the \'home page\' for the following domains: 
+$lang['en_US']['SiteTree']['NOTEUSEASHOMEPAGE'] = 'Use this page as the \'home page\' for the following domains: 
 							(separate multiple domains with commas)';
 $lang['en_US']['SiteTree']['HOMEPAGEFORDOMAIN'] = array(
 	'Domain(s)',
@@ -106,6 +106,8 @@ $lang['en_US']['SiteTree']['MODIFIEDONDRAFT'] = 'Modified on draft site';
 $lang['en_US']['VirtualPage']['CHOOSE'] = 'Choose a page to link to';
 $lang['en_US']['VirtualPage']['HEADER'] = 'This is a virtual page';
 $lang['en_US']['VirtualPage']['EDITCONTENT'] = 'click here to edit the content';
+$lang['en_US']['DateClass']['MONTHS'] = 'months';
+$lang['en_US']['DateClass']['MONTH'] = 'month';
 $lang['en_US']['Form']['VALIDATIONNOTUNIQUE'] = 'The value entered is not unique';
 $lang['en_US']['Form']['VALIDATIONBANKACC'] = 'Please enter a valid bank number';
 $lang['en_US']['Form']['VALIDATIONALLDATEVALUES'] = 'Please ensure you have set all date values';
@@ -269,7 +271,7 @@ $lang['en_US']['Member']['INTERFACELANG'] = array(
 	'Language of the CMS'
 );
 $lang['en_US']['Member']['EMAILSIGNUPSUBJECT'] = 'Thanks for signing up';
-$lang['en_US']['Member']['GREETING'] = 'Welcome';
+$lang['en_US']['']['WELCOME'] = 'Welcome';
 $lang['en_US']['Member']['EMAILSIGNUPINTRO1'] = 'Thanks for signing up to become a new member, your details are listed below for future reference.';
 $lang['en_US']['Member']['EMAILSIGNUPINTRO2'] = 'You can login to the website using the credentials listed below';
 $lang['en_US']['Member']['CONTACTINFO'] = 'Contact Information';
@@ -298,6 +300,21 @@ $lang['en_US']['Member']['BUTTONLOGIN'] = 'Log in';
 $lang['en_US']['Member']['BUTTONLOSTPASSWORD'] = 'I\'ve lost my password';
 $lang['en_US']['Member']['LOGGEDINAS'] = 'You\'re logged in as %s.';
 $lang['en_US']['Member']['WELCOMEBACK'] = 'Welcome Back, %s';
+$lang['en_US']['Security']['OPENIDHEADER'] = 'OpenID/i-name credentials';
+$lang['en_US']['Security']['OPENIDDESC'] = '<p>Make sure you enter your normalized OpenID/i-name credentials 
+				here, i.e. with protocol and trailing slash for OpenID (e.g. http://openid.silverstripe.com/).</p>';
+$lang['en_US']['Security']['OPENIDURL'] = 'OpenID URL/i-name';
+$lang['en_US']['Security']['MEMBERALREADYEXISTS'] = 'There already exists a member with this identity URL';
+$lang['en_US']['OpenIDAuthenticator']['ERRORCRED'] = 'Please enter your OpenID URL or your i-name.';
+$lang['en_US']['OpenIDAuthenticator']['TRANSACTIONINPROGRESS'] = 'OpenID transaction in progress';
+$lang['en_US']['OpenIDAuthenticator']['VERIFICATIONCANCELLED'] = 'The verification was cancelled. Please try again.';
+$lang['en_US']['OpenIDAuthenticator']['AUTHFAILED'] = 'The OpenID/i-name authentication failed.';
+$lang['en_US']['OpenIDAuthenticator']['LOGINFAILED'] = 'Login failed. Please try again.';
+$lang['en_US']['OpenIDLoginForm']['DESC'] = '<div id="OpenIDDescription"><p>OpenID is an Internet-wide identity system
+		  					that allows you to sign in to many websites with a single account.
+							For more information visit <a href="http://openid.net">openid.net</a>.</p></div>
+						';
+$lang['en_US']['OpenIDLoginForm']['URL'] = 'OpenID URL';
 $lang['en_US']['Security']['NOTEPAGESECURED'] = 'That page is secured. Enter your credentials below and we will send you right along.';
 $lang['en_US']['Security']['ALREADYLOGGEDIN'] = 'You don\'t have access to this page.  If you have another account that can access that page, you can log in below.';
 $lang['en_US']['Security']['LOGGEDOUT'] = 'You have been logged out.  If you would like to log in again, enter your credentials below.';