Ya.. I already said I expected it to be required for verification.
But installing a game is supposed to speed up game performance by allowing the Xbox to run the game from the HDD, using the DVD just to verify it's legitimate. Otherwise, what is the purpose of doing the install?
In this case, it seems to have no performance increase so I think it is still running to game directly from the DVD.
OK...Let me try to explain it this way...
Some installs do not improve gameplay as much as others. It seems DKS is one that does not. Also, try to load the game from the installed games list in the desktop menu, if you haven't done so.
Also, after the game is loaded if I eject the DVD the game aborts.
The game disk must remain in the XBOX during gameplay. Although, the game itself, will be read from the HDD.