Can anyone lend an ear to what may be causing LW to crash when moving a camera closer to a ground plane?

System:
Alienware
Pentium 4 - 3Ghz
2.99GHZ 2 GB RAM

XP Pro Service pack 2

Scene Stats:

Objects: 10
Points: 207916 Polys: 372596
Object memory: 21.7M

Surfaces: 5
Render Memory 2.85M
Free Mem: 1455.3M Ram+ 3582.5M Page