I had the same problem some others have of saved games not loading, and occasionally the game crashing when entering a new map. I fixed this with the fix of replacing the gamex86.dll files (recommended in this group) But fixing this has caused another problem - It seems that the new enemies and items found in the expansion don't appear. so e.g. the first map has some strogg guards, but no Gekks. later on, the dualfire damage is missing.

Any ideas?