NF's game engine is getting outdated as new operating systems like vistas emerge.
I suggest that NF switch to a new game engine. This is good for the game's future market
as its graphics and control getting better with new engine. A new game engine also cause
much less problems like crashing and lag.

In fact, use 2D stuff to simulate 3D is a lot of work. However, if the engine is 3D, it is
very easy for the programers to update and maintain the game.

In term of long run cost, it is not economical to maintain a game which has outdated
engine. As the new operating systems and system patches continue to roll in, there will be
continually a lot of problems to occur---more occur as more are fixed. On the other hand,
if the game changes to a new game engine, then it gets better suited to new operating
environment, in which less problem occurs. Of course, the maintain cost becomes much lower
at this point.