diff --git a/src/IndexBuffer.cpp b/src/IndexBuffer.cpp
index 1cf66db..4349232 100644
--- a/src/IndexBuffer.cpp
+++ b/src/IndexBuffer.cpp
@@ -6,13 +6,15 @@ IndexBuffer::IndexBuffer(const unsigned int* data, unsigned int count)
 {
   ASSERT(sizeof(unsigned int) == sizeof(GLuint));
   //
+  std::cout << "m_RendererID: " << &m_RendererID << " " << m_RendererID << std::endl; 
   GLCall(glGenBuffers(1, &m_RendererID));
   GLCall(glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, m_RendererID)); //select buffer called 'buffer'
-  GLCall(glBufferData(GL_ELEMENT_ARRAY_BUFFER, count * sizeof(GLuint), data, GL_STATIC_DRAW)); // assigne buffer size, static as we use many times, but does not change
+  GLCall(glBufferData(GL_ELEMENT_ARRAY_BUFFER, count * sizeof(unsigned int), data, GL_STATIC_DRAW)); // assigne buffer size, static as we use many times, but does not change
 }
 
 IndexBuffer::~IndexBuffer()
 {
+  std::cout << "m_RendererID: " << &m_RendererID << " " << m_RendererID << std::endl; 
   GLCall(glDeleteBuffers(1, &m_RendererID));
 }
 
diff --git a/src/Renderer.cpp b/src/Renderer.cpp
index 552d629..537c7b6 100644
--- a/src/Renderer.cpp
+++ b/src/Renderer.cpp
@@ -1,9 +1,10 @@
 #include "Renderer.h"
+#include <iostream>
 
 
 
 void GLClearError() {
-  while (glGetError() != GL_NO_ERROR);
+  //while (glGetError() != GL_NO_ERROR);
     
 }
 
diff --git a/src/Renderer.h b/src/Renderer.h
index 8de98da..75a4451 100644
--- a/src/Renderer.h
+++ b/src/Renderer.h
@@ -34,4 +34,4 @@
 
 #define INT2VOIDP(i) (void*)(uintptr_t)(i)
 void GLClearError();
-bool GLLogCall();
+bool GLLogCall();
\ No newline at end of file
diff --git a/src/sdl.cpp b/src/sdl.cpp
index 0602e2f..71c1110 100644
--- a/src/sdl.cpp
+++ b/src/sdl.cpp
@@ -63,7 +63,7 @@ SdlWindow::SdlWindow(const char* title, int width, int height)
     r(0.5f),
     location(),
     increment(0.05f),
-    ib(nullptr,6)
+    m_ib(nullptr, 0)
 {
   // 1. Set attributes
     SDL_GL_SetAttribute(SDL_GL_CONTEXT_MAJOR_VERSION, 3);
@@ -120,13 +120,10 @@ SdlWindow::SdlWindow(const char* title, int width, int height)
       2, 3, 0
   };
 
-  //unsigned int vao; //vertext array object
-  //GLCall(glGenVertexArrays(1, &vao));
-  //GLCall(glBindVertexArray(vao));
-
   VertexArray va;
   VertexBuffer vb(positions, 4 * 2 * sizeof(float));
-  ib = IndexBuffer(indices, 6);
+  IndexBuffer ib(indices, 6);
+  m_ib = ib;
 
   VertexBufferLayout layout;
   layout.Push<float>(2);
@@ -255,7 +252,7 @@ void SdlWindow::render() {
   GLCall(glUniform4f(location, r, 0.3f, 0.8f, 1.0f));
 
   va.Bind();
-  ib.Bind();
+  m_ib.Bind();
   // TODO: Draw with OpenGL here (shaders, triangles, etc.)
   //glDrawElements(GL_TRIANGLES, 6, GL_UNSIGNED_INT, nullptr);
   GLCall(glDrawElements(GL_TRIANGLES, 6, GL_UNSIGNED_INT, nullptr)); //macro assert for debugging
@@ -363,7 +360,7 @@ SdlWindow::ShaderProgramSource SdlWindow::parseShader(const std::string& filepat
 }
 
 void SdlWindow::GLClearError() {
-  while (glGetError() != GL_NO_ERROR);
+  //while (glGetError() != GL_NO_ERROR);
     
 }
 
diff --git a/src/sdl.hpp b/src/sdl.hpp
index 469a563..6a03628 100644
--- a/src/sdl.hpp
+++ b/src/sdl.hpp
@@ -62,11 +62,11 @@ private:
   unsigned int buffer;
   unsigned int ibo;
   unsigned int vao;
-  IndexBuffer ib;  // pointer, no default constructor needed
   unsigned int  shader;
   unsigned int   location;
   VertexBufferLayout layout;
   VertexArray va;
+  IndexBuffer m_ib;
 
   // Private methods
   void processEvents();