tester on live account not working

 
If I backtest an expert in my demo account - it works fine. Gives me report/graph/etc.
If I log into my live account and run the same thing - I don't get a single trade. The report shows the starting balance and no activity. This is the same for the sample experts that came already in MT4 as well as my custom experts.
Anyone else having this problem?
 
Have you tried looking at the Journal in the tester? Maybe there are error messages there. Also, I think there's an option somewhere (in the program options or when adding the experte) to allow/disallow live trading


Markus
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