diff --git a/Geo/Chain.cpp b/Geo/Chain.cpp
index dd80308fd12840ed93b8b2ed9af96f1c2388e485..29e06b67d0d3d66852c9120aad22280fefa7138f 100644
--- a/Geo/Chain.cpp
+++ b/Geo/Chain.cpp
@@ -20,10 +20,10 @@
 
 #if defined(HAVE_KBIPACK)
 
-void updateFltkTree()
+void updateFltk()
 {
 #if defined(HAVE_FLTK)
-  FlGui::instance()->rebuildTree();
+  if(FlGui::available()) FlGui::instance()->updateViews();
 #endif
 }
 
diff --git a/Geo/Chain.h b/Geo/Chain.h
index 096f5692fe34c73814d697eff50c27ad2ccc4552..cc85df9b4f5fd45c1b56e6a704bb2a9dcd2c9090 100644
--- a/Geo/Chain.h
+++ b/Geo/Chain.h
@@ -20,7 +20,7 @@
 
 #if defined(HAVE_KBIPACK)
 
-void updateFltkTree();
+void updateFltk();
 std::string convertInt(int number);
 
 // Class whose derivative classes are to have partial or total order
@@ -503,7 +503,7 @@ void Chain<C>::addToModel(GModel* m, bool post,
     // create PView for instant visualization
     std::string pnum = convertInt(physicalNum);
     std::string postname = pnum + "=" + _name;
-    PView* view = new PView(postname, "ElementData", m, data, 0, 1);
+    PView* view = new PView(postname, "ElementData", m, data, 0., 1);
     // the user should be interested about the orientations
     int size = 30;
     PViewOptions* opt = view->getOptions();
@@ -511,7 +511,7 @@ void Chain<C>::addToModel(GModel* m, bool post,
     if(opt->tangents == 0) opt->tangents = size;
     if(opt->normals == 0) opt->normals = size;
     view->setOptions(opt);
-    updateFltkTree();
+    updateFltk();
   }
 #endif
 }