When I try to load the main falloutnv.esm into the geck I get a error message "File FalloutNV.esm is a higher version than this exe can load." Can anyone tell me what my problem is? Thanks. Oh, yea, this is after a get a message "Assert File C:\projects\FalloutPC\BSMain\MessageHandler.h Line 126"

Did you download the New Vegas version of the GECK like mentioned in the first topic here?

I finally figured that out, and have downloaded correct Geck. It works now. Thanks for the response.