Thanks for the reply, but unfortuantely this did not seem to fix my problem. :( I installed all of the files several times, using multiple combinations of .zip and .exe installers, and am still having the same problem. I checked the .py files for import_nif.py and export_nif.py, and both have references to a 'Fallout 3', but it is not showing on Blender... Also, I don't seem to have a scripts/io folder, so I don't know if this is a problem or not... WIll it make a huge difference if I export as Oblivion 'format', and then load the files into Fallout 3? Also, I can't seem to export .nif files to ANY format. I can choose the filename and loaction, but on the next screen where you choose the game format, I cannot progress. I try clicking Enter on the background section, and nothing seems to happen. Am I doing this right?