Hello my name is Urwin.I have a relly big problem that keeps buging me ALOT.This is the problem.When i play ultiduo or a local host server after maybe like 25 minutes of playing it crashes and goes black and it says "No signal" The only way that i can recouvour to tf2 is restarting my hole computer.But this doesnt happen just to tf2 it happens to other steam games.I tried deliting tf folder and reisstalling steam games but nothing changes.Pls help me i relly do apricciate any help given.All thanks for listening#sooryformybadenglish.