diff -r d6cc3365c8b8 -r 1973a58f3900 mapeditor.cpp
--- a/mapeditor.cpp	Wed Apr 09 07:14:13 2008 +0000
+++ b/mapeditor.cpp	Thu Apr 10 19:56:11 2008 +0000
@@ -5260,6 +5260,9 @@
 	int redosAvail=undoSet.readNumEntry (QString("/history/redosAvail"));
 	if (redosAvail>0) return;
 
+	// Also disable autosave for new map without filename
+	if (filePath.isEmpty()) return;
+
 
 	if (mapUnsaved &&mapChanged && settings.value ("/mapeditor/autosave/use",true).toBool() )
 	{