MOO:3 was a gigantic rushed turd and has endless problems like that. Yet, I fire it up and play it often. Did you get the 1 or 2 patches that were released before they abandoned it and ran? Try running it in Win98 compatibility mode too. Right click the short cut, properties, Compatibility tab. I've never had issues loading it like you, but it's a shot. I'm sure you video drivers are up to date, and I know it runs with Direct X 9c. On a side note, I have some directions to mod some of the excel sheets in the game to make it a bit more fun
