I have read tons of threads about people crossfiring 7970s and actually getting worse performance than just using one. I've also had a friend try with no luck and he eventually wound up seeling his 7970 on craigslist. I have noticed that most of these threads and is issue go back about a year but none recently. Has AMD improved the drivers to make it work more consistently now? I am asking because I currently have one 7970 in my computer and I am considering buying another one but I don't want to do it if it's going to be an enormous pain in my ass... I'm not sure if this has an effect beyond having 2 PCIe slots but my motherboard is an ASUS M5A99FX R2.0. Any feedback on this subject would be much appreciated!