I had the problem of HL2 totaly shutting off my computer when I loaded the first level. I had the new 4.1 drivers for my Dads computer(9600xt 256mb), all I did to fix it was roll back to next-latest driver then re-install that driver from the setup .exe. It fixed it right away!
I hope this helps anyone!
i have a 9600xt also,my hl2 crashes at random,fresses and the music shutter,must push reset on the pc to get out of it,i tried the cat 11,went back to the 10s
You have to make sure you re-install the old drivers, not just roll back.
It worked for me :confused:.