Vista x64 + Radeon X1900XT unplayable

[speckfire 1]

Ok update:

I was also getting CD protection errors when running with 4GB of Ram.

I even updated my Nvidia graphics driver to 163-Beta.

It did not solve the issue.

As soon as I removed the 2 GB of additional Ram the game now works flawlessly

I can confirm now that its 4GB ram issue with vista.

I guess Vista users with 4GB or ram need to wait for a patch or remove the extra 2GB

I'm running 64 bit Vista

Nvidia GTS8800

2.4 GHZ Quadcore.

you could try adjusting the amount of ram that vista recognizes.  start -run - msconfig - boot - advanced options - maximium memory.  this way you wouldn't have to physically remove the ram and could readjust the ram by changing the amount and restarting vista.  i prefer it to yanking ram or dual-booting into a legacy os.  <g>  

it works for my ati card.  i can't say if it'd address any game stability issues that forceware users have from the 4gb.

Thanks Ombas, I was not aware of such a thing. I learned something new today