diff --git a/Makefile.am b/Makefile.am
index 624ab53..d5d46c6 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -578,10 +578,12 @@ noinst_DATA += \
 		src/testsuite/scheduling-wizards/wizard-block-fail
 
 examples_DATA = \
+		src/testsuite/scheduling-wizards/environments/Colori_rr_prio_1_2.xgp \
+		src/testsuite/scheduling-wizards/environments/DiscWorld_unblock.xgp \
 		src/testsuite/scheduling-wizards/environments/Ducks_rr_2.xgp \
 		src/testsuite/scheduling-wizards/environments/FruitsBasket_complex.xgp \
 		src/testsuite/scheduling-wizards/environments/Fantozzi_lifo_requests.xgp \
-		src/testsuite/scheduling-wizards/environments/Colori_rr_prio_1_2.xgp \
+		src/testsuite/scheduling-wizards/environments/Pensieri_fcfs.xgp \
 		src/testsuite/scheduling-wizards/environments/ScuolaDiMileto_block_fail.xgp \
 		src/testsuite/scheduling-wizards/environments/ScuolaDiMileto_gap_blocked.xgp \
 		src/testsuite/scheduling-wizards/environments/ScuolaDiMileto_assert_fail.xgp \
@@ -590,7 +592,6 @@ examples_DATA = \
 		src/testsuite/scheduling-wizards/environments/Matteo_preemption_fail.xgp \
 		src/testsuite/scheduling-wizards/environments/Porno_priority_inversion.xgp \
 		src/testsuite/scheduling-wizards/environments/ScuolaDiMileto_gap_fail.xgp \
-		src/testsuite/scheduling-wizards/environments/DiscWorld_unblock.xgp \
 		src/testsuite/scheduling-wizards/environments/TheSecretOfMonkeyIsland.xgp
 
 EXTRA_DIST += $(noinst_DATA) $(examples_DATA)
diff --git a/doc/sgpem2uman.texi b/doc/sgpem2uman.texi
index ea27b93..41deea8 100644
--- a/doc/sgpem2uman.texi
+++ b/doc/sgpem2uman.texi
@@ -809,7 +809,7 @@ It represent the processes status at each instant from the simulation beginning
 to the actual one.@*
 Into the graph is possible to view the processes only or both processes and threads.
 
-@strong{Note:} this graph illustrates the @emph{past}. After each simulation
+@strong{Watch out:} this graph illustrates the @emph{past}. After each simulation
 step is gone, the corresponding processes'/threads' states are drawn.
 
 The graph is divided in three areas:
@@ -1197,8 +1197,10 @@ that the name of the class have to be the same of the name of the file
  
 11     def sort_queue(self, event, queue):
 @strong{12         cmpf = lambda a, b: \
-              a.get_schedulable().get_arrival_time() <= \
-              b.get_schedulable().get_arrival_time()
+              a.get_schedulable().get_arrival_time() +      \
+                  a.get_process().get_arrival_time      <=  \
+              b.get_schedulable().get_arrival_time() +      \
+                  b.get_process().get_arrival_time
 13         self.sort(queue,cmpf)}
 @end example
 @sp 2
@@ -1255,7 +1257,7 @@ parameter via @code{Policy.configure()} if the policy is
 time-sliced, to ensure greater flexibility.
 
 @sp 1
-@item body of @code{ def sort_queue(self, event, queue):} line 12,13 
+@item body of @code{def sort_queue(self, event, queue):} line 12,13 
 
 Sort the queue of ready threads. This method is called by the
 scheduler at each step of the simulation to sort the ready threads
diff --git a/plugins/pyloader/src/builtin-policies/fcfs.py b/plugins/pyloader/src/builtin-policies/fcfs.py
index 7355dce..156549f 100644
--- a/plugins/pyloader/src/builtin-policies/fcfs.py
+++ b/plugins/pyloader/src/builtin-policies/fcfs.py
@@ -42,6 +42,6 @@ the simplest of them all."""
 
     def sort_queue(self, queue):
         cmpf = lambda a, b: \
-            a.get_arrival_time() <= \
-            b.get_arrival_time()
+            a.get_arrival_time() + a.get_process().get_arrival_time() <= \
+            b.get_arrival_time() + b.get_process().get_arrival_time()
         self.sort(queue,cmpf)
diff --git a/src/testsuite/scheduling-wizards/environments/pensieri.xgp b/src/testsuite/scheduling-wizards/environments/Pensieri_fcfs.xgp
similarity index 100%
rename from src/testsuite/scheduling-wizards/environments/pensieri.xgp
rename to src/testsuite/scheduling-wizards/environments/Pensieri_fcfs.xgp