Do the following:
1. Turn both Dither-256 and Dither-Truecolor OFF
2. Create a Flic from the animation with Medium Palette
3. Select the Flic for CUSTOM PALETTE and save to single GIFs.
4. In Gif Construction Set, load all GIFs, and select the Palette of the
first as the Global Palette when prompted.
You can also visit Rendert**ls
http://www.archlab.tuwien.ac.at/w2561/ipas/TOOLS.HTM
and download a Conversion program for Flics - just render a flic and
convert to AGif!