I found the cause :

MetaQuotes 11.09.07 15:57

New MetaTrader 4 Client Terminal Build 210 has been released.

What' new:

1. Fixed displaying of profits "as Term Currency" for futures.

2. Tester: removed the checkbox "Recalculate". Now the testing sequence is generated each time anew at clicking "Start".

3. Tester: improved the generation algorithm in every tick modeling mode.

4. Tester: improved the change of quotes receiving speed at visual testing.

5. Tester: added counting and displaying errors of lower timeframes mismatch at testing sequences generation.

6. Tester: changed the formulations, describing modeling modes. Added into the tester report notifying messages when using modes of modeling "control points" and "open prices only".

7. Tester: changed the algorithm of formating the final value of an optimized parameter. Now 0 can be indicated as this value.

8. MQL4: fixed MessageBox() function operation in endless cycled scripts.

9. MQL4: fixed memory leakage at the attempt to access a non-existent custom indicator from the Expert Advisor.

10. MQL4: fixed error of transforming a constant date, falling on 1970.01.01.

11. MQL4: fixed compiler error in processing the bit operation NOT with constant expression.

12. Replaced the hot key of current profile changing. Instead of F5 now Ctrl+F5 should be used.

13. Improved the formation of a balance chart when displaying the trades history report. Now pending orders are not displayed on the chart.

14. Added the Estonian Language.