A: ScreenShots are taken by pressing the PrintScreen key on your keyboard.
Q: Where does the game save my ScreenShots on my computer?
A: All NWN ScreenShots are stored in the same place:
Q: In what format does NWN save ScreenShots on my computer?
A: NWN saves ScreenShots as 1024 X 768 TGA's, thats a True Vision Targa.
You will need a good graphics program (Adobe Photoshop, Macromedia Fireworks, Jasc Paint Shop Pro, ect...) to view a targa file.
The file naming scheme starts with NWN0000, then goes to NWN0001, then NWN0002, ect...