Index: /trunk/src/xpra/client/gtk2/client.py
===================================================================
--- /trunk/src/xpra/client/gtk2/client.py	(revision 12401)
+++ /trunk/src/xpra/client/gtk2/client.py	(revision 12402)
@@ -200,6 +200,18 @@
                 clipboardlog.warn("Warning: no clipboard types matching '%s'", self.client_clipboard_type)
             clipboard_options = filtered
-        clipboardlog("get_clipboard_helper_classes()=%s", clipboard_options)
-        return clipboard_options
+        #now try to load them:
+        clipboardlog("get_clipboard_helper_classes() options=%s", clipboard_options)
+        loadable = []
+        for co in clipboard_options:
+            try:
+                parts = co.split(".")
+                mod = ".".join(parts[:-1])
+                __import__(mod, {}, {}, [parts[-1]])
+                loadable.append(co)
+            except ImportError as e:
+                clipboardlog("cannot load %s: %s", co, e)
+                continue
+        clipboardlog("get_clipboard_helper_classes()=%s", loadable)
+        return loadable
 
     def make_clipboard_helper(self):
Index: /trunk/src/xpra/client/gtk_base/gtk_tray_menu_base.py
===================================================================
--- /trunk/src/xpra/client/gtk_base/gtk_tray_menu_base.py	(revision 12401)
+++ /trunk/src/xpra/client/gtk_base/gtk_tray_menu_base.py	(revision 12402)
@@ -556,6 +556,7 @@
             copts = self.client.get_clipboard_helper_classes()
             #ugly alert: the helper does not exist yet.. we just check the helper classnames:
-            for c in copts:
-                if c.find("translated_clipboard")>0:
+            if len(copts)>0:
+                chname = copts[0].lower()
+                if chname.find("translated_clipboard")>0 or chname.find("osxclipboard"):
                     return self.make_translatedclipboard_optionsmenuitem()
         except: