Extra line on scatter graph that should not be there.

[urbanvibration]

Hi All,

Here's hoping someone can help.

I've just plotted this scatter curve in excel 2007 and it's not right. The data is correct but there is an extra line showin between x=1 and x=2. I can't work out why it is there.

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How do i get rid of it?

Much appreciated,

Dan.