Well, it turns out that there are two Gif formats.... Gif87a and Gif89a.
Gif89a allows for a transparent background while Gif87a does not.

There is a program called giftrans.exe that converts the Gif87a to
Gif89a letting you specify what #rrggbb color will be transparent.

I found this program on a site at:
 http://members.aol.com/htmlguru/transparent_images.html 

Glen
glenk10 wrote:
> 
> I have graphic files in vector format that I use the Polygon or
> Prism commands of Povray to make images.  So far so good.  But I
> want to knock out the background as though the image is outlined so
> I can use the image on a Web page and have the background of the Web
> page show thru.
> 
> I hav'nt been having any luck doing this with no_background or a
> transparent backgound.  Any suggestions?  Thanks for any ideas.
> Sorry if this is a FAQ, I did'nt find it anywhere....
> 
> Glen

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