hi
i installed empire total war

but when i start the game by loader, it says app not installed correctly, reinstall

but when i start the exe it goes to the first screen, the one with courtesy of national maritime museum

after that it crashes to desktop

i am really harrowed,
appreciate any help

sys reqs are

processor- p4 3.0 ghz
graphis- 512mb nvidia geforce8400gs
ram- 512mb