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EUR/USD extended its rally to the levels last seen more than a year ago. Such fast and strong rally causes concern that the strength of the euro may be more disastrous to the European economy than the sovereign debt crisis. The US economic data was encouraging today, especially the unexpected surge of the construction …

When back-testing an expert advisor in MT4 Strategy Tester it is sometimes possible to encounter an error that significantly spoils the quality of testing:

TestGenerator: unmatched data error (aaa value xxx.xxx at some.date and price yyy.yyy mismatched)

where aaa is either “high” or ”low”, xxx.xxx — some price rate and yyy.yyy …