diff -r 3eb7be1dd7b6 -r d781b00f3ed4 Source/QuartzUtils.m
--- a/Source/QuartzUtils.m	Mon Mar 10 17:30:57 2008 -0700
+++ b/Source/QuartzUtils.m	Tue Mar 11 17:09:50 2008 -0700
@@ -71,8 +71,9 @@
     [CATransaction setValue:(id)kCFBooleanTrue
                      forKey:kCATransactionDisableActions];
 
-    CGPoint pos = [newSuperlayer convertPoint: layer.position 
-                      fromLayer: layer.superlayer];
+    CGPoint pos = layer.position;
+    if( layer.superlayer )
+        pos = [newSuperlayer convertPoint: pos fromLayer: layer.superlayer];
     [layer retain];
     [layer removeFromSuperlayer];
     if( index >= 0 )