skeletonbow: I'm getting an immediate crash on trying to start this game up also. Tried:
1) Launching game from Galaxy client.
2) Launching game from Start menu, both normal and safe mode.
3) Opened up a command prompt, tried running nwn.exe, nwloader.exe, nwmain.exe
All crash, however the loader starts up before eventually launching the game which crashes. No error messages or useful info. I tried changing the resolution with nwconfig.exe also which had no effect.
I'll try the Direct X suggestion above, but it doesn't make much sense for GOG to install a non-working game if they know it needs an alternate DX, they should install that from the game's installer so it just works for everyone by default. I'll contact support about it though.
Thanks for posting the suggestion here for people to find BTW!
Do you have an ATI card? If so, try renaming nwmain.exe to something else (eg nwmain2.exe) and running it then, preferably in XP compatibility mode.