diff --git a/src/java/org/lwjgl/opengl/GLContext.java b/src/java/org/lwjgl/opengl/GLContext.java
index 77861967..6d5204d7 100644
--- a/src/java/org/lwjgl/opengl/GLContext.java
+++ b/src/java/org/lwjgl/opengl/GLContext.java
@@ -34,10 +34,7 @@ package org.lwjgl.opengl;
 import org.lwjgl.LWJGLException;
 import org.lwjgl.Sys;
 
-import java.lang.ref.WeakReference;
-import java.lang.reflect.Field;
 import java.lang.reflect.Method;
-import java.lang.reflect.Modifier;
 import java.util.*;
 
 /**
@@ -48,8 +45,8 @@ import java.util.*;
  * pointers.
  *
  * This class is thread-safe in the sense that multiple threads can safely call all public methods. The class is also
- * thread-aware in the sense that it tracks a per-thread current context (and capabilities). That way, multiple threads
- * can have multiple contexts current and render to them concurrently.
+ * thread-aware in the sense that it tracks a per-thread current context (including capabilities and function pointers). 
+ * That way, multiple threads can have multiple contexts current and render to them concurrently.
  *
  * @author elias_naur <elias_naur@users.sourceforge.net>
  * @version $Revision$
diff --git a/src/native/common/extgl.c b/src/native/common/extgl.c
index 8b2cda00..055099f4 100644
--- a/src/native/common/extgl.c
+++ b/src/native/common/extgl.c
@@ -109,8 +109,10 @@ void *extgl_GetProcAddress(const char *name)
 		NSSymbol sym = NSLookupSymbolInImage(opengl_lib_handle, mach_name, NSLOOKUPSYMBOLINIMAGE_OPTION_BIND | NSLOOKUPSYMBOLINIMAGE_OPTION_RETURN_ON_ERROR);
 		void *address = NSAddressOfSymbol(sym);
 		return address;
-	} else
+	} else {
+		printfDebug("Could not locate symbol %s\n", name);
 		return NULL;
+	}
 #endif
 }