/obj/screen --> /atom/movable/screen

code/modules/modular_computers/computers/item/computer.dm

@@ -123,7 +123,7 @@
 
 /obj/item/modular_computer/MouseDrop(obj/over_object, src_location, over_location)
 	var/mob/M = usr
-	if((!istype(over_object, /obj/screen)) && usr.canUseTopic(src, BE_CLOSE))
+	if((!istype(over_object, /atom/movable/screen)) && usr.canUseTopic(src, BE_CLOSE))
 		return attack_self(M)
 	return ..()
 

code/modules/modular_computers/computers/item/laptop.dm

@@ -68,11 +68,11 @@
 	try_toggle_open(usr)
 
 /obj/item/modular_computer/laptop/MouseDrop(obj/over_object, src_location, over_location)
-	if(istype(over_object, /obj/screen/inventory/hand) || over_object == usr)
-		var/obj/screen/inventory/hand/H = over_object
+	if(istype(over_object, /atom/movable/screen/inventory/hand) || over_object == usr)
+		var/atom/movable/screen/inventory/hand/H = over_object
 		var/mob/M = usr
 
-		if(!istype(over_object, /obj/screen/inventory/hand))
+		if(!istype(over_object, /atom/movable/screen/inventory/hand))
 			M.put_in_active_hand(src)
 			return
 

code/modules/modular_computers/file_system/programs/secureye.dm

@@ -21,10 +21,10 @@
 
 	// Stuff needed to render the map
 	var/map_name
-	var/obj/screen/map_view/cam_screen
+	var/atom/movable/screen/map_view/cam_screen
 	/// All the plane masters that need to be applied.
 	var/list/cam_plane_masters
-	var/obj/screen/background/cam_background
+	var/atom/movable/screen/background/cam_background
 
 /datum/computer_file/program/secureye/New()
 	. = ..()
@@ -42,8 +42,8 @@
 	cam_screen.del_on_map_removal = FALSE
 	cam_screen.screen_loc = "[map_name]:1,1"
 	cam_plane_masters = list()
-	for(var/plane in subtypesof(/obj/screen/plane_master))
-		var/obj/screen/instance = new plane()
+	for(var/plane in subtypesof(/atom/movable/screen/plane_master))
+		var/atom/movable/screen/instance = new plane()
 		instance.assigned_map = map_name
 		instance.del_on_map_removal = FALSE
 		instance.screen_loc = "[map_name]:CENTER"