I get error's with that software world3d thing, it give me an error: external 000000000f an it wont let me close the program it load's up but I can't see any terrain or load any model or anything even can't exit the program it give me that error when I try to load any model or exit the software which prevents me from closing it. I use task manager to exit the software. any ideas how to solve this problem? I have 256 mb of ram and I saw they suggest 512mb or higer but I don't think that has alot to do with it.