diff --git a/CMakeLists.txt b/CMakeLists.txt
index 5469139..5bcf3b2 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -27,4 +27,4 @@ link_directories(/usr/local/lib)
 add_executable(erc ${sources} src/main.c)
 
 # Graphics
-target_link_libraries(erc ${opengl_library} glfw)
+target_link_libraries(erc ${opengl_library} glfw GLEW)
diff --git a/include/vm_screen.h b/include/vm_screen.h
index 2a49e28..8ef7d29 100644
--- a/include/vm_screen.h
+++ b/include/vm_screen.h
@@ -1,9 +1,13 @@
 #ifndef _VM_SCREEN_H_
 #define _VM_SCREEN_H_
 
+#include <GL/glew.h>
 #include <GLFW/glfw3.h>
 #include <stdbool.h>
 
+#define VM_SCREEN_DEFWIDTH 800
+#define VM_SCREEN_DEFHEIGHT 600
+
 /*
  * If you just want to plot a single pixel, you can use this macro to
  * abstract away the need to indicate the x/y dimensions (as those must
diff --git a/src/vm_screen.c b/src/vm_screen.c
index fb4736b..e222272 100644
--- a/src/vm_screen.c
+++ b/src/vm_screen.c
@@ -6,11 +6,25 @@
  * program, which only knows to call the functions here.
  */
 
+#include <stdbool.h>
 #include <stdlib.h>
 
 #include "log.h"
 #include "vm_screen.h"
 
+static bool init_glew = false;
+
+static void
+glew_init()
+{
+    if (!init_glew) {
+        glewExperimental = GL_TRUE;
+        glewInit();
+
+        init_glew = true;
+    }
+}
+
 int
 vm_screen_init()
 {
@@ -18,6 +32,13 @@ vm_screen_init()
         return ERR_GFXINIT;
     }
 
+    glfwWindowHint(GLFW_CONTEXT_VERSION_MAJOR, 4);
+    glfwWindowHint(GLFW_CONTEXT_VERSION_MINOR, 0);
+    glfwWindowHint(GLFW_OPENGL_PROFILE, GLFW_OPENGL_CORE_PROFILE);
+    glfwWindowHint(GLFW_OPENGL_FORWARD_COMPAT, GL_TRUE);
+
+    glfwWindowHint(GLFW_RESIZABLE, GL_FALSE);
+
     return OK;
 }
 
@@ -48,7 +69,10 @@ vm_screen_create()
 int
 vm_screen_add_window(vm_screen *screen)
 {
-    screen->window = glfwCreateWindow(320, 240, "erc", NULL, NULL);
+    screen->window = glfwCreateWindow(VM_SCREEN_DEFWIDTH, 
+                                      VM_SCREEN_DEFHEIGHT,
+                                      "erc", NULL, NULL);
+
     if (screen->window == NULL) {
         log_critical("Could not create a window");
         return ERR_GFXINIT;
@@ -56,6 +80,10 @@ vm_screen_add_window(vm_screen *screen)
 
     glfwMakeContextCurrent(screen->window);
 
+    // glew can only be initialized _after_ the window is built; if you
+    // do so beforehand, you will be rudely presented with a segfault.
+    glew_init();
+
     return OK;
 }