[cappy70]

This is an big issue with ATI, from a 5870 review:

""Yowzers -- Okay, so in the past we've talked a lot about dual-GPU gaming and the issues that come along with it. ATI's big challenge is that new games require a driverupdate or hotfix to become multi-GPU compatible. We are nearly a year away from the moment when the 4870 X2 was released, and it is with some frustration that I still have to report that ATI still has not implemented user based multi-GPU profiles. E.g. if a totally hot new game you just picked up is not yet supported by the driver, you could create your own profile and maximize performance. ATI... dudes... get that done, this is getting embarrassing.""