Sapphire HD 5770 flex

Hello
Recently i bought a Sapphire HD 5770 Flex graphic card. I have problem to setup the eyefinity technology. My monitors is Samsung 32" (DP to HDMI) , HP W2207H 22"(HDMI) and LG L1720S 17"(DVI to VGA). I can extend or duplicate the second monitor without a problem. If i try to extend or duplicate the third monitor, i have to disable one of the other two. Every time i try to create a group i have 2 options 2x1 or 1x2. I downloaded the updates of 22th of November but the problem persists. Do i have to use ATI adapters? Do i have to use 3 identical monitors anything i want? which monitors i can use and how i can setup the eyfinity?

Thank you for your time
 
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