What is wrong with the MT4 exposure graph?

 

My account is based in AUD so I am assuming this has something to do with it


I have noticed that right from the start of opening and trading my account in MT4, when I click on the exposure tab in MT4, the graph always shows a huge exposure to AUD even when I have zero positions open involving the AUD. By the way, this only happens when I click on 'Long Positions' even if I am net short the AUD. 


Also the volume (as a +) is always the highest for the AUD even if I have zero positions. 


any ideas?

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