Default Weight in Pivot Table Charts keeps getting reset

[scott56hannah]

Hi,

I have created a Pivot Table chart and I am using basic line chart to
display the data...I would like to make the line weight 2 points heavier than
the standard but each time I select new values from the Pivot Table chart it
resets to the default....where do you set this to remain at the values
entered...

Any help appreciated....
Scott