Err sorry GP I am not joking. In a 32 bit mode you are not far from the poly count wall now. Lightwave has no gigapolygon core, or a bucket renderer mode. You can bypass it using plugins like HDinstance (if you needed to cover the station with dozens of instanced trees for example?
) but you are limited by how much memory a given task will take. This is doubly bad for Fprime, because it also has to load it's contents into it's buffer, which takes up more memory, if you are close to the line, then it stops working a while before renderer does!
I am not double sure on how a Mac handles memory in 32 bit applications, if it's 2 or 4 gig - but beyond that that is your whack. Once you run out of memory for polygons, you will not get a render.. try this now with a subD object, and crank up the polygon density settings.. you will get a 'out of memory' warning.