But we bought that game and it runs fine.
Go buy it?
http://www.amazon.com/Neverhood-Pc/dp/B00004RKER
I bought the full version download of the Neverhood for Windows XP and Vista. It starts out fairly well but when you get to the middle of the game it wants the game disk. Could someone tell me why a full download is asking for a disk, and how to fix this.

Chowhound
Comic Vine
GameFAQs
GameSpot
Giant Bomb
TechRepublic