Firstly, hello again. It's been almost five years since I was last active 'round these parts. Secondly, my issue: I can't get Crossfire working right. I've got 11.6 with its CAP1 installed. Both cards are detected, Crossfire is enabled in CCC and all that. However... When I run any Source game, everything's fine in the menus but as soon as a 3D environment loads, performance hits rock bottom. It does seem like it's actually running, because if I minimize the game and bring it back up it'll have a different frame. But it simply will not render (and sound loops as if I was changing settings) while in the game. Metro 2033 gets around 1 FPS at all times. Never got past the menu as it was stuttering too much. Crysis Warhead works fine, but sees no performance benefit whatsoever compared to running just the 5850. So, what is wrong? Like I say, everything looks fine in the drivers and setup, but games just will not function correctly with Crossfire enabled. I've tried older drivers, with and without CAP, and I've even done a complete wipe and re-install of Windows, installing only the bare minimum to get a game running. Still nothing.