Negative Images on Plots

[Volk359]

Hello,

I've got a drawing (Acad 2005 with Raster Design 2005) that has an image embedded in it that looks normal yet when it plots the raster part of the drawing plots out white on black rather then the normal black on white.

This is the only drawing it happens on and all the rest of the similar drawings plot normally.

I've gone thru all the settings I can think of but don't see anything out of the norm. Anyone know why this is happening?

Thanks