How come I can't run the doom 3 time demo??

[Kunaak]

the games installed and all, but when I enter "timedemo demo 1"
the game defaults back to the start screen like I quit the game, then I open the console again, and it says it failed to open the demo.
so I look in the program file... theres no demo files anywhere

so how do you do the time demo?

[stayfrosty]

theres not space between demo and 1 its "timedemo demo1"