UE3 - UDK build crashing

[needse]

hi guys

i have a problem with unreal ed every time i click build or build lighting it crashes my machine and stops responding (both versions )

i have i7 860
6 gig ram
1 gig geforce 450

does anybody know whats cause this it does this even if i put nothing in the scene and just click build ?

 

[Bi()ha2arD]

try updating your video drivers. Turn off overclocks if any, move inis and let the game rebuild them.