sequence of screenshots?

[Kenward Vaughan <kay_jay@earthlink.net>]

I want to capture a rotating figure in a window and make a movie of it.
I've Googled several ways to take screenshots with programs (gimp,
shutter, imagemagick, etc.) but have seen no way to do this consistently
every 0.X seconds... 

fbcat looked hopeful until I realized that nvidia doesn't seem to have
aan fb device under /dev.

Is there a way to do this?? Thoughts are welcome!

TIA,


Kenward

-- 
In a completely rational society, the best of us would aspire to be 
_teachers_ and the rest of us would have to settle for something less, 
because passing civilization along from one generation to the next 
ought to be the highest honor and the highest responsibility anyone 
could have.     - Lee Iacocca