--- a/test/testsprite2.c	Sat Sep 19 04:47:36 2009 +0000
+++ b/test/testsprite2.c	Sat Sep 19 05:12:26 2009 +0000
@@ -134,10 +134,19 @@
         SDL_SetTextureAlphaMod(sprite, (Uint8) current_alpha);
     }
 
+    /* Draw a gray background */
+    SDL_SetRenderDrawColor(0xA0, 0xA0, 0xA0, 0xFF);
+    SDL_RenderFill(NULL);
+
+    /* Draw two red points to make sure they show up correctly */
+    SDL_SetRenderDrawColor(0xFF, 0x00, 0x00, 0xFF);
+    SDL_RenderPoint(0, 0);
+    SDL_RenderPoint(window_w-1, 0);
+    SDL_RenderPoint(0, window_h-1);
+    SDL_RenderPoint(window_w-1, window_h-1);
+
     /* Move the sprite, bounce at the wall, and draw */
     n = 0;
-    SDL_SetRenderDrawColor(0xA0, 0xA0, 0xA0, 0xFF);
-    SDL_RenderFill(NULL);
     for (i = 0; i < num_sprites; ++i) {
         position = &positions[i];
         velocity = &velocities[i];