Threaded anim GIFs?

[Richard Gaskin]

I've noticed that animated GIFs only animate while the engine is idle -- 
anyone know a trick to get them to continue animating while the engine 
is busy with a script?

I'd like to use an anim GIF as part of a progress dialog, but I imagine 
the engine could do a more efficient job than my scripts of changing 
frames if there was a built-in capability of doing so without having to 
explicitely tell it each time.

-- 
  Richard Gaskin
  Fourth World Media Corporation
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  Ambassador at FourthWorld.com       http://www.FourthWorld.com