[away3d] Dot3BitmapMaterialF10 slow?

[M Crossley]

Any idea why Dot3BitmapMaterialF10 is about 10x slower at rendering
than Dot3BitmapMaterial on my system?

Using Adobe Flash CS4 Pro, with Flash 10,0,42,34

Latest SVN version of Away3D.

Any pointers gratefuly received.

Thanks
Mark