Garrys Mod Black Screens On Start-Up

Hello,

I’m in need of assistance, My friend just bought Garrys Mod. But, When he boots it up. He gets to the loading screen and it turns black and goes back to the desktop. Any idea?

Sincerely,
Ulauma.

Try different directx modes.

-dxmode **

** = 70, 80, 81, 90, 95, 100 (100 on vista only)

where i insert that?

whats his specs?