Change key binding to avoid conflict.
diff --git a/Lib/idlelib/config-keys.def b/Lib/idlelib/config-keys.def
index ebaffd4..821ee12 100644
--- a/Lib/idlelib/config-keys.def
+++ b/Lib/idlelib/config-keys.def
@@ -113,8 +113,8 @@
 end-of-file=<Control-Key-d>
 python-docs=<Key-F1>
 python-context-help=<Shift-Key-F1> 
-history-next=<Command-Key-n>
-history-previous=<Shift-Command-Key-n>
+history-next=<Control-Key-n>
+history-previous=<Control-Key-p>
 interrupt-execution=<Control-Key-c>
 open-class-browser=<Command-Key-b>
 open-module=<Command-Key-m>