I upgraded my 2 7950s to a single 290 and was running Eyefinity previously, with a Bizlink(Accel) active dual link (the USB powered) adapter, which has worked perfectly for my last 4 cards. Now with my new card, I get constant blinking. I also tried an Apple DP-single link adapter (which had worked previously as well), which also isn't working. I don't know what else to do, any ideas? It's extremely frustrating.
I'm on the latest non-beta drivers, with a clean install of windows.