Latest MT4 history downloads screwy

I have downloaded history today to do some backtesting. Something is wrong. I can not replicate all the backtests I have down in previous years. Over years I have confirmed the previous backtests are correct. They match. But current downloads are nothing like previous history. Anyone else having this issue? For those backtesting, beware the current history data seems to be corrupted, and I would not rely on to to begin live trading on a large account.. It may be a temporary glitch. I will keep updated.

It may be the downloaded history which is corrupted ...

Also, are you sure both history are from the same source feed ? If not, don't expect to have the same results. That's not necessary a problem of corrupted datas. Just different datas.

Thanks Ferru.
I found the problem. I am using 5 MT4's to backtest with. Would you believe two of the MT4 platforms are corrupted and backtesting incorrectly? The very ones I have been using lately. I fired up the other three and they all are giving the correct results.

I will leave this thred here as a warning to have more than one MT4 to test with, as it looks like they can just stuff up, and need to be reinstalled. Getting incorrect backtests is NOT what you need. Before going live it would be wise to cross check across at least 3 mt4's I think.