Just wanted to mention that I got the game running.
I have the Diamond edition and it needed the 1.69 patch before it would run. I had downloaded a patch- Neverwinter Nights when it should have been Neverwinter Nights Hordes of the Underdark Patch!
After installing this I clicked on the patch exe and it installed the update. Restarted the laptop and it plays now
Just thought I'd mention this for any one stuck with the same problem I had.