If i run Soldat in fullscreen see menuscreen/black.. menuscreen/black.. menuscreen/black.. menu screen. If i give exit from game is same for 2times black/menu.

i have GeForce4 with 64MB Ram and last version of forceware drivers

Nvidia's newer video card drivers can cause a few issues with Soldat. I would first suggest that you run Soldat's Config.exe and make sure anti-aliasing is off. Check to make sure the "force software" button is also unchecked and that you have your anti-aliasing turned off in your graphic card's display settings.

Have you tried running it in windowed mode?

in windowed mode is all ok (for playing is better FS), only in fullscreen change resolution to 640x480 for 3times..

in game and in drivers is anti-aliasing off, Force software is unchecked..

Sometimes Soldat isn't happy with the newer nVidia drivers. Try getting an older version and see if that helps.

Do you experience this problem in any other games?
Did you at one stage not experience this problem? If so, what have you changed since?