diff --git a/src/deps/glfw-3.3.2/src/x11_window.c b/src/deps/glfw-3.3.2/src/x11_window.c
index 271e108..0ce23d2 100644
--- a/src/deps/glfw-3.3.2/src/x11_window.c
+++ b/src/deps/glfw-3.3.2/src/x11_window.c
@@ -1557,7 +1557,7 @@ static void processEvent(XEvent *event)
             //       the position into root (screen) coordinates
             if (!event->xany.send_event && window->x11.parent != _glfw.x11.root)
             {
-                Window dummy;
+                Window dummy = 0;
                 XTranslateCoordinates(_glfw.x11.display,
                                       window->x11.parent,
                                       _glfw.x11.root,
diff --git a/src/scripts/demos/simple_000.lua b/src/scripts/demos/simple_000.lua
index 9d3f706..a5eec50 100644
--- a/src/scripts/demos/simple_000.lua
+++ b/src/scripts/demos/simple_000.lua
@@ -8,7 +8,7 @@ pw.script:load_all()
 print("hello pixwerx!")
 
 local w = pw.window.new()
-w.visible = false
+--w.visible = false
 
 -- set title
 w.title = "pixwerx 0.1"
diff --git a/src/system/src/window.cpp b/src/system/src/window.cpp
index 002735a..7cf78d0 100644
--- a/src/system/src/window.cpp
+++ b/src/system/src/window.cpp
@@ -146,8 +146,16 @@ struct window::impl {
         if (!glfwInit())
         {
             debug::e() << "Initalization error";
+
         }
 
+        int glfw_major, glfx_minor,glfw_rev;
+        glfwGetVersion(&glfw_major,&glfx_minor,&glfw_rev);
+
+
+        debug::d() << "GLFW " << glfw_major << "." << glfx_minor << "." << glfw_rev;
+        debug::d() << "GLFW header " << GLFW_VERSION_MAJOR << "." << GLFW_VERSION_MINOR << "." << GLFW_VERSION_REVISION;
+
         update_display_list();
 
         // request specific version 3.3
@@ -206,7 +214,6 @@ struct window::impl {
     {
         if (_window && !glfwWindowShouldClose(_window))
         {
-
             input::get().reset();
 
             // get new events