Can not get my head around this…
When I add the MACD to a chart in MT4 I can only see one trend line?!
Eaven when I am trying to edit the Setting of the MACD, I still cant solve the problem…
Help, annyone? 
Hi
You’ve discovered something that is a well known problem. The built in MACD in MT4 is incorrect.
You can either browse around google and search for something like macd_correct.mq4, or you can use the OSMA indicator which is standard in MT4. OSMA actually is the same as the correct MACD.
Good trading
Thank god! Thought I was going insane there for while 
I�ll Defenetly ceck out the OSMA instead
Thanks a million!
No problem.
Just change the settings to 12, 26, 9 as they are the standard MACD settings. I think OSMA is set to another value as standard.