Index: typo3/mod/web/perm/class.sc_mod_web_perm_ajax.php
===================================================================
--- typo3/mod/web/perm/class.sc_mod_web_perm_ajax.php	(Revision 4066)
+++ typo3/mod/web/perm/class.sc_mod_web_perm_ajax.php	(Arbeitskopie)
@@ -318,11 +318,12 @@
 	 * @param	Integer		$page: The TYPO3 page id
 	 * @param	Integer		$ownerUid: The new page user uid
 	 * @param	String		$username: The TYPO3 BE username (used to display in the element)
+	 * @param	Boolean		$validUser: Must be set to FALSE, if the user has no name or is deleted
 	 * @return	String		The new group wrapped in HTML
 	 */
-	public function renderOwnername($page, $ownerUid, $username) {
+	public function renderOwnername($page, $ownerUid, $username, $validUser = true) {
 		$elementId = 'o_'.$page;
-		$ret = '<span id="'.$elementId.'"><a class="ug_selector" onclick="WebPermissions.showChangeOwnerSelector('.$page.', '.$ownerUid.', \''.$elementId.'\', \''.htmlspecialchars($username).'\');">'.($username == '' ? '<span class=not_set>[not set]</span>' : htmlspecialchars(t3lib_div::fixed_lgd_cs($username, 20))).'</a></span>';
+		$ret = '<span id="' . $elementId . '"><a class="ug_selector onclick="WebPermissions.showChangeOwnerSelector(' . $page . ', ' . $ownerUid . ', \'' . $elementId.'\', \'' . htmlspecialchars($username) . '\');">' . ($validUser ? ($username == '' ? '<span class=not_set>[not set]</span>' : htmlspecialchars(t3lib_div::fixed_lgd_cs($username, 20))) :  ('<span class=not_set>' . htmlspecialchars(t3lib_div::fixed_lgd_cs($username, 20)) . '</span>')) . '</a></span>';
 		return $ret;
 	}
 
@@ -333,11 +334,12 @@
 	 * @param	Integer		$page: The TYPO3 page id
 	 * @param	Integer		$groupUid: The new page group uid
 	 * @param	String		$groupname: The TYPO3 BE groupname (used to display in the element)
+	 * @param	Boolean		$validGroup: Must be set to FALSE, if the group has no name or is deleted
 	 * @return	String		The new group wrapped in HTML
 	 */
-	public function renderGroupname($page, $groupUid, $groupname) {
+	public function renderGroupname($page, $groupUid, $groupname, $validGroup = true) {
 		$elementId = 'g_'.$page;
-		$ret = '<span id="'.$elementId.'"><a class="ug_selector" onclick="WebPermissions.showChangeGroupSelector('.$page.', '.$groupUid.', \''.$elementId.'\', \''.htmlspecialchars($groupname).'\');">'.($groupname == '' ? '<span class=not_set>[not set]</span>' : htmlspecialchars(t3lib_div::fixed_lgd_cs($groupname, 20))).'</a></span>';
+		$ret = '<span id="'.$elementId . '"><a class="ug_selector" onclick="WebPermissions.showChangeGroupSelector(' . $page . ', ' . $groupUid . ', \'' . $elementId . '\', \'' . htmlspecialchars($groupname) . '\');">'. ($validGroup ? ($groupname == '' ? '<span class=not_set>[not set]</span>' : htmlspecialchars(t3lib_div::fixed_lgd_cs($groupname, 20))) : ('<span class=not_set>' . htmlspecialchars(t3lib_div::fixed_lgd_cs($groupname, 20)) . '</span>')) . '</a></span>';
 		return $ret;
 	}
 
Index: typo3/mod/web/perm/index.php
===================================================================
--- typo3/mod/web/perm/index.php	(Revision 4066)
+++ typo3/mod/web/perm/index.php	(Arbeitskopie)
@@ -623,13 +623,20 @@
 			$lE_bgCol = $bgCol;
 
 				// User/Group names:
-			$userName = $beUserArray[$data['row']['perms_userid']] ? $beUserArray[$data['row']['perms_userid']]['username'] : ($data['row']['perms_userid'] ? '<i>['.$data['row']['perms_userid'].']!</i>' : '');
-			$userName = SC_mod_web_perm_ajax::renderOwnername($pageId, $data['row']['perms_userid'], htmlspecialchars(t3lib_div::fixed_lgd_cs($userName, 20)));
+			$userName = $beUserArray[$data['row']['perms_userid']] ? $beUserArray[$data['row']['perms_userid']]['username'] : ($data['row']['perms_userid'] ? '[' . $data['row']['perms_userid'] . ']!' : '');
+			if ($data['row']['perms_userid'] && (!$beUserArray[$data['row']['perms_userid']])) {
+				$userName = SC_mod_web_perm_ajax::renderOwnername($pageId, $data['row']['perms_userid'], htmlspecialchars(t3lib_div::fixed_lgd_cs($userName, 20)), false);
+			} else {
+				$userName = SC_mod_web_perm_ajax::renderOwnername($pageId, $data['row']['perms_userid'], htmlspecialchars(t3lib_div::fixed_lgd_cs($userName, 20)));
+			}
 
-			$groupName = $beGroupArray[$data['row']['perms_groupid']] ? $beGroupArray[$data['row']['perms_groupid']]['title']  : ($data['row']['perms_groupid'] ? '<i>['.$data['row']['perms_groupid'].']!</i>' : '');
-			$groupName = SC_mod_web_perm_ajax::renderGroupname($pageId, $data['row']['perms_groupid'], htmlspecialchars(t3lib_div::fixed_lgd_cs($groupName, 20)));
+			$groupName = $beGroupArray[$data['row']['perms_groupid']] ? $beGroupArray[$data['row']['perms_groupid']]['title']  : ($data['row']['perms_groupid'] ? '[' . $data['row']['perms_groupid'] . ']!' : '');
+			if ($data['row']['perms_groupid'] && (!$beGroupArray[$data['row']['perms_groupid']])) {
+				$groupName = SC_mod_web_perm_ajax::renderGroupname($pageId, $data['row']['perms_groupid'], htmlspecialchars(t3lib_div::fixed_lgd_cs($groupName, 20)), false);
+			} else {
+				$groupName = SC_mod_web_perm_ajax::renderGroupname($pageId, $data['row']['perms_groupid'], htmlspecialchars(t3lib_div::fixed_lgd_cs($groupName, 20)));
+			}
 
-
 				// Seeing if editing of permissions are allowed for that page:
 			$editPermsAllowed = ($data['row']['perms_userid'] == $BE_USER->user['uid'] || $BE_USER->isAdmin());