I'm having mysterious difficulties installing Redux.

I (re)installed basic MTW, then Viking Invasion, then the patch. So far so good. At this point the game works fine (2.01). I make a copy of the MTW folder and try to install Redux.

No dice. I get the "Unknown faction specified: column 20, row 8" error message.

I've already tried Redux on a different computer. It worked. I'm using the same Redux files on this computer and installing it the same way. I am confident that I have copied the files correctly, in the right order.

1. Medieval Total War 2.01 (fresh copy)
2. MTW-Redux 1.0b (or equivalent)
3. VI-upgrade 1.0
4. Spanish Fix (B)

The folder is D:\Medieval - Total War.

Any advice? Could the installation folder matter?