diff --git a/Viewer/cfg/requirejs.js b/Viewer/cfg/requirejs.js
index 36305fd0..0c296d05 100644
--- a/Viewer/cfg/requirejs.js
+++ b/Viewer/cfg/requirejs.js
@@ -55,11 +55,11 @@ var setup = function(require, root){
 			//'ext-lib/preact': './node_modules/preact/dist/preact.dev',
 
 			'lib/doc': 'node_modules/ig-doc/doc',
+			'lib/stoppable': 'node_modules/ig-stoppable/stoppable',
 			'lib/object': 'node_modules/ig-object/object',
 			'lib/types': 'node_modules/ig-types/',
 			'lib/actions': 'node_modules/ig-actions/actions',
 			'lib/features': 'node_modules/ig-features/features',
-			'lib/stoppable': 'node_modules/ig-stoppable/stoppable',
 			//'lib/keyboard': './node_modules/ig-keyboard/keyboard',
 			'object-run': 'node_modules/object-run/run',
 			
diff --git a/Viewer/features/filesystem.js b/Viewer/features/filesystem.js
index 7a78f44d..b553ca17 100755
--- a/Viewer/features/filesystem.js
+++ b/Viewer/features/filesystem.js
@@ -420,6 +420,7 @@ var FileSystemLoaderActions = actions.Actions({
 	// 		given path???
 	getPreviews: ['- File/',
 		function(pattern, path, images){
+			var that = this
 			images = images || this.images
 			pattern = pattern == 'current' ? this.current + '*'
 				: pattern == 'all' ? '*'
@@ -451,16 +452,15 @@ var FileSystemLoaderActions = actions.Actions({
 									var rel = pathlib.relative(images[gid].base_path, base)
 
 									images[gid].path = pathlib.join(rel, images[gid].path) 
-									images[gid].base_path = base
-								}
+									images[gid].base_path = base }
 
-								images[gid].preview = p[gid].preview
-							}
-						})
-					}
-					return images
-				})
-		}],
+								images[gid].preview = p[gid].preview 
+								// XXX should we check if things have changed???
+								that.markChanged('images', [gid]) } }) }
+					return images }) }],
+	// XXX indicate progress???
+	getAllPreviews: ['File/Update image preview list',
+		'getPreviews: "all"'],
 
 	// Get images in path...
 	//