So, you got a crossfire system, perhaps even in the case of not running in a crossfire mode at all, that the unique abilities of your "slave" card such as VIVO itself would be present and accounted for. Low and behold i've finally got to the bottom of it. Ok heres the issue at hand. In crossfire mode, with crossfire enabled and all that good stuff, The cards are combined to provide superior 3D Performance and quality. That's all great and dandy (if it worked most of the time i might add). But in the case of running more then just one monitor, things get difficult straight out and out. You have to disable Crossfire to do so, not a big deal, bit of a pain in the ass though but no biggy. with 2 cards in the machine, your video output options increase from 2 to 4 possible monitors. (although 3 would be more efficient due to the dongle being where it is with taking up 2 connections). So 3 monitors (or more)? shouldn't be a hassle but alass, it is about as nightmarish as one could even comprehend, some of the monitor designation issues are astounding if not utterly rediculious. Get your setup finally working you figure, a reboot later, and your greeted with a welcome screen perhaps on the wrong screen. And it just gets worse from there on. Hint: if you totally go nutz, just enabled crossfire mode a few times, it generally lets you FINALLY get back to square one instead of manually trying to get back there with nothing but issues. And finally, Got yourself a slave card with say VIVO? ya do? pretty slick, disable crossfire to use vivo, wouldn't that be a great idea? nay, theres no such thing, the moment you stick in a mastercard, the vivo features are instantly disabled completely, However, they are obtainable if you firstly, disabled crossfire, secondly, go into the bios and set to boot from the slave card, which forcefully totally will ruin your day in the end, as the driver reinstallation takes place and several reboots later, you lose ALL crossfire abilities (obviously) and your mastercard can officially be considered dead weight as it's both pointless to use and it's sucking power, your monitor cables may need some throwing around to get a screen at all sometimes.... and all this just to get vivo to work again.... going back to play a game in crossfire? reverse what you just did, plus add about 15 minutes to that while things reset themselves into the right order and you pluck the last hair from your head to get your a video signal as the dongle screws with your mind. Long story short ATI made so many mistakes with crossfire, i haven't and i don't think i could name them all.. Obviously the above is a start for one thing. But the dongle connectors are an obvious must be removed emediately and a "Should have never made it outa the engineering labs" screwup. I mean the tighteners themselves are of such a light metal, that they either strip or break so easily, theres no way to make a "Snug Solid Connection" Don't know about you, but there are so many little issues with 3D apps/games that it makes having crossfire more of a waste in general on power, but the dollar value alone is sickening. Various 3D settings have a habit of not working properly at all in crossfire mode, performance has been seen where you may as well be running a card by itself due to not running "crossfire" mode even though it is enabled. Try alt tabbing out of a few games, or screw playing in windowed mode... Seriously: 10% of the things out there use crossfire decently. the rest it either royally screws up or causes problems or you see absalutely no benifits. ATM, if i can, i stir people completely AWAY from crossfire, it's both pointless and useless and in general, more of a hassle then anything. Save your the time in your life by just getting sli atm.