I've always had problems with amd drivers in my old radeon 4650, now I use a nvidia gtx 660 and I have no problem. I do not want free drivers slow, I want a driver provided by the company to which I paid my money, and give me good support. Freedom or not ... I prefer stability and performance. By the way, my radeon 4650 has no support for new kernels and xorg, thanks amd.