> I have done it with older Windows Protel although there is no option 
> there either.
> 
> I set print in color mode.
> You then add a "fake" fill all over one of the spare mid layers.
> Select white as the color of the tracks on the layer you want including 
> multilayer.
> Select black color for the fill layer.
> Only print your layer and the fill layer.

In Tools | Preferences of the print preview (PPC) file editor, you can set
the colors for each layer, including a "Background Layer", both in color
mode and in greyscale mode. 

I don't know what the background layer is; it doesn't seem to appear in the
PCB file, and neither in the layer selection for the printout
configuration, and it doesn't seem to have any effect changing the color
associated with it. But it may be worth experimenting with that. 

> Note: This may only work if the fill layer is higher up than the layer 
> you want to print.
> Eg. You may not be able to print the Top layer doing this method.

In the Protel 99 SE PPC file you can define the order of the layers freely
for every printout. So this work-around should work without restrictions,
if the background layer thing doesn't lead anywhere.

Gerhard
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