Have downloaded the demo several times, i have a cpu 1,7ghz and 735MB ram, latest drivers and direct x9. So i have the right pc to game this game, but every time that i download this demo, i always have missing files, and the game wont run, even in safe mode. So, for me its the end of Croteam on my pc. I have Serious Sam, and Serious Sam second encounter. But if i cant play the Serious Sam 2 as a demo, i will never purchase the game only for its name.