Index: Slim/Buttons/Playlist.pm
===================================================================
--- Slim/Buttons/Playlist.pm	(revision 9052)
+++ Slim/Buttons/Playlist.pm	(working copy)
@@ -389,7 +389,11 @@
 	}
 	
 	# update list length for the knob.  ### HACK ATTACK ###
-	$client->param('listLen', Slim::Player::Playlist::count($client));
+	if (Slim::Buttons::Common::mode($client) eq 'playlist') {
+		$client->param('listLen', Slim::Player::Playlist::count($client));
+	} else {
+		$playlistindex = undef;
+	}
 	
 	# get (and optionally set) the browseplaylistindex parameter that's kept in param stack
 	return $client->param('listIndex', $playlistindex);