Crossfire AMD R9 290X

Hi there.

I have searched the forum and found some references to crossfire and that it should work out-of-the-box as long as you run fullscreen. I cannot however get my second card to do anything. I have tried other games where it does work so I know the crossfire-setup and the cards are working.

I have tried forcing a crossfire-enabled profile in amd CCC but the second card remains idle. I installed and tried RadeonPro but that didnt even let me run the game, somehow the launcher started complaining that I should launch ffxivboot, I guess RadeonPro intercepted the call too ffxiv.exe and ran it on it's own or something.

I'm trying to run 2 x R9 290X cards on a Asus Rampage IV motherboard but so far no luck. :(

If anyone have any suggestions I'm all ears.