After making changes in the terrain or adding vegetation, it start "baking" and even very small modifications in a 500x500 terrain takes 10 minutes or more in a 4.5GHz quad-core CPU overloading it at max. I think it's lighting related? I'm not there right now, I'll post the exact status messages ASAP. I don't need anything professional, I just want to be able to play around a bit and create simple stuff without my PC catching fire. Thanks in advance!