Are there different in the behavior of Strategy Tester between a demo account and a real account?

[fnogues]

I'm new with Metatrader and I tried to test ExpertMAPSARSizeOptimized with 1 Hour with the following parameters (log file):

IF 0 127.0.0.1 18:58:55 login (build 527)
RR 0 Network 18:58:55 1478 bytes of tester parameters loaded
IE 0 Network 18:58:55 4792 bytes of input parameters loaded
IL 0 Tester 18:58:55 initial deposit 5000.00 USD, leverage 1:100
PE 0 Tester 18:58:55 successfully initialized
EM 0 Network 18:58:55 6383 bytes of total initialization data received
EJ 0 Tester 18:58:55 Intel Core2 Quad  Q6600 @ 2.40GHz, 2047 MB
EM 0 Symbols 18:58:55 EURUSD: symbol to be synchronized
FJ 0 Symbols 18:58:55 EURUSD: symbol synchronized, 3304 bytes of symbol info received
DL 0 History 18:58:55 EURUSD: symbol tick base found
GD 0 Tester 18:58:55 EURUSD,H1 (MetaQuotes-Demo): 1 minutes OHLC ticks generating
LP 0 Tester 18:58:55 EURUSD,H1: testing of Experts\Advisors\ExpertMAPSARSizeOptimized.ex5 from 2000.01.01 00:00 to 2011.11.04 00:00 started with inputs:
KF 0 Tester 18:58:55   Inp_Expert_Title=ExpertMAPSARSizeOptimized
PQ 0 Tester 18:58:55   Inp_Signal_MA_Period=12
DQ 0 Tester 18:58:55   Inp_Signal_MA_Shift=28
NF 0 Tester 18:58:55   Inp_Signal_MA_Method=1
FO 0 Tester 18:58:55   Inp_Signal_MA_Applied=1
CI 0 Tester 18:58:55   Inp_Trailing_ParabolicSAR_Step=0.02
EN 0 Tester 18:58:55   Inp_Trailing_ParabolicSAR_Maximum=0.20
JJ 0 Tester 18:58:55   Inp_Money_SizeOptimized_DecreaseFactor=27.0
FN 0 Tester 18:58:55   Inp_Money_SizeOptimized_Percent=74

 

After a few hours, the best parameters only execute the first month of 2000 and I would like to review all until 2011.11.04 

The last log file lines are:

KP 0 Trades 18:58:57 2000.02.02 20:42:00   deal #31 buy 267.17 EURUSD at 0.98130 done (based on order #31)
NM 0 Trade 18:58:57 2000.02.02 20:42:00   deal performed [#31 buy 267.17 EURUSD at 0.98130]
MH 0 Trade 18:58:57 2000.02.02 20:42:00   order performed buy 267.17 at 0.98130 [#31 buy 267.17 EURUSD at 0.98130]
FG 0 Tester 18:58:57 final balance 61577.69
LP 0 Tester 18:58:57 OnTester result 0
KP 3 Tester 18:58:57 stop out occured on 0% of testing interval
GD 0 Tester 18:58:57 EURUSD,H1: 99287 ticks (549 bars) generated within 297 ms (total bars in history 6724, total time 469 ms)
MK 0 Tester 18:58:57 log file "C:\Archivos de programa\MetaTrader 5\Tester\Agent-127.0.0.1-3001\logs\20111105.log" written
IK 0 Tester 18:58:57 tester agent shutdown

What is it happening?

Thanks in advance. 

[balazs321]

There may be a difference. But you will be amazed for sure when you realize the difference between the tester and live trading!

[fnogues]

balazs321:
There may be a difference. But you will be amazed for sure when you realize the difference between the tester and live trading!

But the test only check 1 month ?