diff -r 50bf98210aae src/video/uikit/SDL_uikitopenglview.m
--- a/src/video/uikit/SDL_uikitopenglview.m	Thu Aug 18 22:43:37 2011 +0200
+++ b/src/video/uikit/SDL_uikitopenglview.m	Tue Aug 23 02:55:17 2011 +0200
@@ -123,8 +123,8 @@
 
         // !!! FIXME: use the screen this is on!
         /* Use the main screen scale (for retina display support) */
-        if ([[UIScreen mainScreen] respondsToSelector:@selector(scale)])
-            self.contentScaleFactor = [UIScreen mainScreen].scale;
+        if ([self respondsToSelector:@selector(contentScaleFactor)])
+            self.contentScaleFactor = [[UIScreen mainScreen] scale];
 
         self.autoresizingMask = 0;  // don't allow autoresize, since we need to do some magic in -(void)updateFrame.
     }
@@ -152,8 +152,8 @@
     
     // !!! FIXME: use the screen this is on!
     /* Use the main screen scale (for retina display support) */
-    if ([[UIScreen mainScreen] respondsToSelector:@selector(scale)])
-        self.contentScaleFactor = [UIScreen mainScreen].scale;
+    if ([self respondsToSelector:@selector(contentScaleFactor)])
+        self.contentScaleFactor = [[UIScreen mainScreen] scale];
 }
 
 - (void)setCurrentContext {