Open any component that contains polygons, in 4.9.6.2, you'll see an option that says "allow backface removal" (renamed to 'hidden face' in future releases)

The Flash quality option in the above sample has just been changed from 'high' to 'autohigh' - which makes quite an amazing difference to the rendering speed.

If nobody has any objections, 3DFA's default might be changed back to autohigh. This means the flash player may decide to reduce the antialiasing if the desired framerate cannot be met. This caused some concern about jagged edges in the dark past, but hopefully enough people these days are running a 2Ghz processor.