Thank you, Aciburn. I wonder why the .ini gets erased when installing it in my VPS.

Another issue you may help is regarding the re-test. Supose you write some script which gives some positive results and you want to make a few changes and re-test it. What happens to me is that usually the re-test gives as result the message "backtest... " but it does not really compile and execute it. However, from time to time it does it. Do you know what to do so that every time one click the "Test" button it really compiles and gives a result?