Well, in bryce's defence.. Indirect lighting on complex objects such as trees are a pain in the ass for any render program. Did u try using TA for it? It's slow too but with noisy textures such as u get often in terrains u can get away with 36 or 64 samples per pixel instead of insane 256 samples per pixel like u'd have to do with stuff like architectural scenes.

(_/)
(='.'=)
(")(")This is Bunny. Copy and paste bunny into your signature to help him gain world domination.