diff --git a/ImGuiVisitor.cpp b/ImGuiVisitor.cpp
index f69cda1..de7e0fd 100644
--- a/ImGuiVisitor.cpp
+++ b/ImGuiVisitor.cpp
@@ -274,7 +274,7 @@ void ImGuiVisitor::visit (MediaSource& s)
     }
     else {
         ImGui::Text("Video File");
-        if ( ImGui::Button("Open Media Player", ImVec2(IMGUI_RIGHT_ALIGN, 0)) )
+        if ( ImGui::Button(IMGUI_TITLE_MEDIAPLAYER, ImVec2(IMGUI_RIGHT_ALIGN, 0)) )
             Settings::application.media_player = true;
     }
     ImGuiToolkit::ButtonOpenUrl( SystemToolkit::path_filename(s.path()).c_str(), ImVec2(IMGUI_RIGHT_ALIGN, 0) );
@@ -294,6 +294,8 @@ void ImGuiVisitor::visit (SessionSource& s)
 void ImGuiVisitor::visit (RenderSource& s)
 {
     ImGui::Text("Rendering Output");
+    if ( ImGui::Button(IMGUI_TITLE_PREVIEW, ImVec2(IMGUI_RIGHT_ALIGN, 0)) )
+        Settings::application.preview = true;
 }
 
 void ImGuiVisitor::visit (CloneSource& s)
diff --git a/SessionSource.cpp b/SessionSource.cpp
index d9b1f27..31cf7ab 100644
--- a/SessionSource.cpp
+++ b/SessionSource.cpp
@@ -141,7 +141,7 @@ void SessionSource::render()
             session()->deleteSource(session()->failedSource());
 
         // render the sesion into frame buffer
-        static glm::mat4 projection = glm::ortho(-1.f, 1.f, -1.f, 1.f, -1.f, 1.f);
+        static glm::mat4 projection = glm::ortho(-1.f, 1.f, 1.f, -1.f, -1.f, 1.f);
         renderbuffer_->begin();
         sessionsurface_->draw(glm::identity<glm::mat4>(), projection);
         renderbuffer_->end();
@@ -207,7 +207,7 @@ void RenderSource::render()
         init();
     else {
         // render the view into frame buffer
-        static glm::mat4 projection = glm::ortho(-1.f, 1.f, -1.f, 1.f, -1.f, 1.f);
+        static glm::mat4 projection = glm::ortho(-1.f, 1.f, 1.f, -1.f, -1.f, 1.f);
         renderbuffer_->begin();
         sessionsurface_->draw(glm::identity<glm::mat4>(), projection);
         renderbuffer_->end();
diff --git a/UserInterfaceManager.cpp b/UserInterfaceManager.cpp
index 37e018c..cb46167 100644
--- a/UserInterfaceManager.cpp
+++ b/UserInterfaceManager.cpp
@@ -506,7 +506,7 @@ void UserInterface::showMenuFile()
         std::thread (SessionFileDialogOpen, Settings::application.recentSessions.path).detach();
         navigator.hidePannel();
     }
-    if (ImGui::MenuItem( ICON_FA_FILE_EXPORT "  Import")) {
+    if (ImGui::MenuItem( ICON_FA_FILE_EXPORT " Import")) {
         // launch file dialog to open a session file
         sessionFileDialogImport_ = true;
         std::thread (SessionFileDialogOpen, Settings::application.recentSessions.path).detach();
@@ -635,7 +635,8 @@ void UserInterface::RenderPreview()
         float width = ImGui::GetContentRegionAvail().x;
 
         ImVec2 imagesize ( width, width / ar);
-        ImGui::Image((void*)(intptr_t)output->texture(), imagesize, ImVec2(0.f, 1.f), ImVec2(1.f, 0.f));
+        ImGui::Image((void*)(intptr_t)output->texture(), imagesize);
+//        ImGui::Image((void*)(intptr_t)output->texture(), imagesize, ImVec2(0.f, 1.f), ImVec2(1.f, 0.f));
 
         ImGui::End();
     }
diff --git a/View.cpp b/View.cpp
index dd283b2..05b0a40 100644
--- a/View.cpp
+++ b/View.cpp
@@ -206,7 +206,7 @@ void RenderView::setResolution(glm::vec3 resolution)
 
 void RenderView::draw()
 {
-    static glm::mat4 projection = glm::ortho(-1.f, 1.f, -1.f, 1.f, -SCENE_DEPTH, 1.f);
+    static glm::mat4 projection = glm::ortho(-1.f, 1.f, 1.f, -1.f, -SCENE_DEPTH, 1.f);
     glm::mat4 P  = glm::scale( projection, glm::vec3(1.f / frame_buffer_->aspectRatio(), 1.f, 1.f));
     frame_buffer_->begin();
     scene.root()->draw(glm::identity<glm::mat4>(), P);