When I try to adjust any settings in Graphic mode setup application I get the message that game is not installed, although my Carmageddon is in fact installed. Any solution to that?

Use the graphics setup from the shortcut menu.

I installed NGLIDE 1.00 and your game CARMAGEDDON MAX PACK.
Race is being held in a very small window.
When you try to enhance,edit, and save the screen resolution through the Graphic mode setup.exe I see this window:
Error:Game not installed.

That to me in this case you need to do?
Please explain to me step by step.

Pressing + (plus) and - (minus) in game changes the view size in game.

Turn on the HARDWARE MODE and the picture is very dark.Что I need to do??

There are apparently no start menu shortcuts for me to use.

Start menu>GoG>Carmageddon

Unless you changed something on your system where it wont create any shortcuts, that is what you need.

1. Update nGlide (.zeus-software.com/downloads/nglide)

2. After installed, go to its folder on Program Files and run the graphics setup.

3. Choose your desirable resolution, save and exit.

(if the game runs darker, come back there and adjust the gamma)

Much obliged, that did the job.!!!