so when i start playing i get freeze and crash to desktop after i use any doors in game more then 2 times, and if i don't use doors game crashes do desktop in about 10 minutes of gameplay
i don't find fun restarting my game every 10 minutes i it's unplayable
i tried every fix i found on internet and nothing works
so what should i do, any fix there?

i updated nvidia drivers too in it's description writes it does something with new vegas but didn't help me

i've the same problem...the game crashes every 15-20 min.Maybe are Nvidia video cards,i've installed all the drivers for my Nvidia GeForce 9600 GT and all the patches of the game but i see only crashes...i love this game but i'm very tired to reset my pc.The game freezes,crashes to desktop in 640x480 with altered colours and then the monitor dies.My pc is ok.
p.s. i've already installed d3d9.dll

Please post your DXdiag.