Index: /FCKeditor/trunk/editor/dialog/fck_flash/fck_flash.js
===================================================================
--- /FCKeditor/trunk/editor/dialog/fck_flash/fck_flash.js	(revision 1252)
+++ /FCKeditor/trunk/editor/dialog/fck_flash/fck_flash.js	(revision 1253)
@@ -253,4 +253,7 @@
 			alert( "Security error. You probably don't have enough permissions to upload. Please check your server." ) ;
 			return ;
+		case 500 :
+			alert( 'The connector is disabled' ) ;
+			break ;
 		default :
 			alert( 'Error on file upload. Error number: ' + errorNumber ) ;
Index: /FCKeditor/trunk/editor/dialog/fck_image/fck_image.js
===================================================================
--- /FCKeditor/trunk/editor/dialog/fck_image/fck_image.js	(revision 1252)
+++ /FCKeditor/trunk/editor/dialog/fck_image/fck_image.js	(revision 1253)
@@ -459,4 +459,7 @@
 			alert( "Security error. You probably don't have enough permissions to upload. Please check your server." ) ;
 			return ;
+		case 500 :
+			alert( 'The connector is disabled' ) ;
+			break ;
 		default :
 			alert( 'Error on file upload. Error number: ' + errorNumber ) ;
Index: /FCKeditor/trunk/editor/dialog/fck_link/fck_link.js
===================================================================
--- /FCKeditor/trunk/editor/dialog/fck_link/fck_link.js	(revision 1252)
+++ /FCKeditor/trunk/editor/dialog/fck_link/fck_link.js	(revision 1253)
@@ -660,4 +660,7 @@
 			alert( "Security error. You probably don't have enough permissions to upload. Please check your server." ) ;
 			return ;
+		case 500 :
+			alert( 'The connector is disabled' ) ;
+			break ;
 		default :
 			alert( 'Error on file upload. Error number: ' + errorNumber ) ;