Yeah, Ive been through some of the X2 threads where you posted on your issues. Unfortunate for you and I can understand why you would consider ATI's drivers horrible, but then again not everyone is having those issues and they will come up with totally different conclusions. Seems to me that the drivers and the X2 seem to be a bit picky in regards to the system its installed on. Im sure that will improve over time.
I've actually tried the 4870 X2 on another machine of mine with great success. I know that the issues I'm having are unusual, but I've never experienced issues with NVIDIA drivers anywhere NEAR the same degree of problems. Even on the same system.