**From another thread;
** "The NVOGLNT.DLL file is one of the driver files used by nVidia for OpenGL support, switching to that may resolve the problem."

And another more involved response to a similar error;
"Sounds like you do not have the required OpenGL drivers, or an older one for your video card (ie - overwrote by the update to DX9 package). Make sure you are not using the Nvidia driver v169.04 (it's a beta = no good). Use the certified driver v163.71. (this may give you a BLACK SCREEN issue, as reported by Bioware. If so, revert to this driver instead: VISTA | XP )

Are you running Vista? If so, this will also cause the issue. You'll want to change the compatibly on the nwtoolset.exe to windows 98.

If that doesn't fix it, are you using DUAL CORE? If so, that's a no-no. You'll have to set the processor affinity for the nwtoolset.exe process to one CPU.

Still no luck?

You can try this before you download the most recent OpenGL drivers for the Nvidia card you have.

Start -> Run

Type:

dxdiag

Go to the DISPLAY TAB.

Disable AGP Texture Acceleration.

Try NWN.

If it doesn't work, go back and enable it again.

Still nothing?!?

Download the latest Nvidia driver for OpenGL."