diff --git a/cfg/Config.cs b/cfg/Config.cs
index 250af20..afabb73 100644
--- a/cfg/Config.cs
+++ b/cfg/Config.cs
@@ -91,7 +91,7 @@ namespace lib
 
 				cfg.SetFilename( filename );
 			}
-			catch( FileNotFoundException )
+			catch( IOException )
 			{
 				Type[] types = new Type[0];
 				object[] parms = new object[0];
diff --git a/res/Resource.cs b/res/Resource.cs
index ccd7d67..6399caa 100644
--- a/res/Resource.cs
+++ b/res/Resource.cs
@@ -53,10 +53,12 @@ namespace res
 	[Serializable]
 	public class Ref<T>: Ref where T : class
 	{
-		public T res => m_res != null ? m_res : m_res = Mgr.load<T>( filename );
-
-		//For serialization
-		public Ref()
+		public T res => m_res != null ? m_res : m_res = Mgr.load<T>( filename );
+
+		//For serialization
+		public Ref()
+			:
+			base( "<unknown>" )
 		{
 		}