Garry's Mod is freezing when it it opening in loading screen

[med_cezir197]

and anythings happen . how can it be ?

[url]http://img149.imageshack.us/img149/5063/adszuk.jpg[/url] here is my setuped games. i didn't download hl2 . may it be problem ?

[editline]4th December 2010[/editline]

it is ok i wrote -dxlevel 90 starup options . and it is done