Gmod crashes when loading CSS Map

Everytime when i launch de_dust2, or de_dust the loading bar gets stuck at Initiliazing resources or something… Then, my pc completely freezes (even ctrl alt delete doesnt work), and i have to reset my PC. Is anybody else having this issue? Pls help 3:

get more ram

do you have CS:S textures enabled? if not, that might be the cause of the problem

I do have CSS textures, but ive never enabled anything…