thanks for the help guys, but it still doesn't work. Aldaron, I am using Bryce 5, are you using 4? Because I did the same thing and it didn't work.

The best I can get it to do is to rotate 180 degrees in the first 2 seconds, and then instead of completing the rotation it turns back the opposite way for the last 2 seconds.

I have tried animating it with 4 keyframes, 3 keyframes, 2 keyframes. But it always does something wacky, bouncing back and forth and changing rotation rates, very strange.

Here is something interesting -- when I do 3 keyframes:
-- 1 at 0 seconds, 0 degrees rotation
-- 1 at 2 seconds, 180 degree rotation
-- 1 at 4 seconds, 360 degrees rotation
I go back to the 2 second mark and check the rotation, and instead of it being 180 degrees on the Y axis, it has 180 degrees on the Z and X axes. I don't understand!

If anyone can help me with this it would be much appreciated. Otherwise I'll have to waste Clay Hagebusch's time by asking him.
Thanks,
--bz