20050420: IDV - point data plot hidden by "background color"

[Jeff McWhirter <jeffmc@xxxxxxxxxxxxxxxx>]

> setBackground(Color.white) was removed from the classes to make point data symbols.
>
> Am still getting a rectangular opaque area in white or gray around each symbol.
>  
Are these symbol objects that were already created in a station model or 
are they newly created
after the change to the code?

-Jeff