diff --git a/src/Gui/Icons/resource.qrc b/src/Gui/Icons/resource.qrc
index f9378563a..7edc1e18e 100644
--- a/src/Gui/Icons/resource.qrc
+++ b/src/Gui/Icons/resource.qrc
@@ -95,12 +95,12 @@
         <file>Part_Measure_Clear_All.svg</file>
         <file>Part_Measure_Toggle_All.svg</file>
         <file>spaceball_button.svg</file>
-        <file>SpNav-PanLR.png</file>
-        <file>SpNav-PanUD.png</file>
-        <file>SpNav-Roll.png</file>
-        <file>SpNav-Spin.png</file>
-        <file>SpNav-Tilt.png</file>
-        <file>SpNav-Zoom.png</file>
+        <file>SpNav-PanLR.svg</file>
+        <file>SpNav-PanUD.svg</file>
+        <file>SpNav-Roll.svg</file>
+        <file>SpNav-Spin.svg</file>
+        <file>SpNav-Tilt.svg</file>
+        <file>SpNav-Zoom.svg</file>
         <file>DrawStyleAsIs.svg</file>
         <file>DrawStyleFlatLines.svg</file>
         <file>DrawStylePoints.svg</file>
diff --git a/src/Gui/View3DInventorViewer.cpp b/src/Gui/View3DInventorViewer.cpp
index 5159fdacf..95bb469ca 100644
--- a/src/Gui/View3DInventorViewer.cpp
+++ b/src/Gui/View3DInventorViewer.cpp
@@ -142,8 +142,9 @@ SOQT_OBJECT_ABSTRACT_SOURCE(View3DInventorViewer);
 
 View3DInventorViewer::View3DInventorViewer (QWidget *parent, const char *name, 
                                             SbBool embed, Type type, SbBool build)
-    : inherited (parent, name, embed, type, build), editViewProvider(0),navigation(0),
-      editing(FALSE), redirected(FALSE), overrideMode("As Is")
+  : inherited (parent, name, embed, type, build), editViewProvider(0), navigation(0),
+    framebuffer(0), axisCross(0), axisGroup(0), editing(FALSE), redirected(FALSE),
+    allowredir(FALSE), overrideMode("As Is")
 {
     Gui::Selection().Attach(this);