I was just wondering, in the release notes for beta driver 14.4, I read that the following bug/issue with the drivers has been resolved:
 : GPU hand in CrossFire Mode
I've tried getting crossfire to work on my dual 7950-system, but it seemed those cards were unsupported.
So to my regret, I gave up on ubuntu in favor of Win7 for gaming.
I kept hopeful for changes though