Comment 4 for bug 496113

I think it is because it is sitting on an NTFS partition, I know the general suggestion from the Wine guys/gals is not to run from NTFS as it has caused some oddities in the past.

What I am surprised about is that PyLotRO recognised the language file yet then failed to recognise it correctly and put the proper language code in.

I'd copy your DDO to a Linux drive and give it another go, if it works then we know that was the problem, if it doesn't I'll do some more digging.