HDRI problem

[Tommy L]

I am trying to use an hdri bitmap to illuminate a scene in 3dviz(as in max). As a still it is fine. As it is an animation, the bitmap needs to be mapped onto the inside of a sphere (as opposed to a normal background image) so it moves in accordance to the camera. Can anyone tell me what settings to change in Brazil to enable the bitmap to illuminate the scene?

[Tommy L]

In fact, any advice on HDRI usage would be fantastic as it is defo the way forward where realism is concerned. Oh, any general pointers with brazil would be invaluable as well. If anyone would like to glean what little knowledge i have, fire away.