diff --git a/main3.lua b/main3.lua
--- a/main3.lua
+++ b/main3.lua
@@ -115,7 +115,8 @@ declare {
 	},
 	menu_sprites = {
 	},
-	in_game = false
+	in_game = false,
+  last_location = false
 }
 
 include "tutorial"
@@ -153,11 +154,13 @@ game.ondecor = function(s, name, press, 
 end;
 
 game.afterwalk = function()
-	dprint(from().nam, '->', here().nam);
-
-	if from().themeDispose then
-		from():themeDispose();
-	end;
+  if last_location then
+    dprint(last_location.nam, '->', here().nam);
+    
+    if last_location.themeDispose then
+      last_location:themeDispose();
+    end;
+  end;
 	
   local theme = std.call(here(), 'theme');
   
@@ -173,6 +176,8 @@ game.afterwalk = function()
   if here().themeInit then
 		here():themeInit();
 	end;
+  
+  last_location = here();
 end;
 
 function cat_list(list, sep)
@@ -461,7 +466,7 @@ room {
 	disp = '';
 	theme = 'menu';
 	themeInit = function(s)
-	   init_menu(true, {'back'});
+    init_menu(true, {'back'});
 	end;
 	themeDispose = function(s)
 		D {'start'};
@@ -1648,7 +1653,7 @@ function start(load)
 			'kbc-s'
 		};
     
-		local bpi = rnd(#computer_parts);
+		--[[local bpi = rnd(#computer_parts);
 		_(computer_parts[bpi]).status = false;
 		computer_parts[bpi] = computer_parts[#computer_parts];
 		computer_parts[#computer_parts] = nil;
@@ -1658,6 +1663,8 @@ function start(load)
 		--]]
 		
 		-- Debug
+    power_on = true;
+    walk('tower_level_4_room_2');
 	end;
 end;