diff --git a/www/manager/Utils.js b/www/manager/Utils.js
index 9dc397e6..2d0142d7 100644
--- a/www/manager/Utils.js
+++ b/www/manager/Utils.js
@@ -207,7 +207,7 @@ Ext.define('PVE.Utils', { statics: {
 
     render_kvm_vga_driver: function (value) {
 	if (!value) {
-	    return 'Default';
+	    return 'OS default';
 	}
 	var text = PVE.Utils.kvm_vga_drivers[value];
 	if (text) { 
diff --git a/www/manager/qemu/Options.js b/www/manager/qemu/Options.js
index fc5dc81e..81d304e0 100644
--- a/www/manager/qemu/Options.js
+++ b/www/manager/qemu/Options.js
@@ -37,14 +37,16 @@ Ext.define('PVE.qemu.Options', {
 	    onboot: {
 		header: 'Start at boot',
 		defaultValue: '',
-		renderer: PVE.Utils.format_boolean_with_default,
+		renderer: PVE.Utils.format_boolean,
 		editor: {
 		    xtype: 'pveWindowEdit',
 		    title: 'Start at boot',
 		    items: {
-			xtype: 'booleanfield',
+			xtype: 'pvecheckbox',
 			name: 'onboot',
-			value: '',
+			uncheckedValue: 0,
+			defaultValue: 0,
+			deleteDefaultValue: true,
 			fieldLabel: 'Start at boot'
 		    }
 		}