MB ASUS P8 Z77 V LK. 600W PS. Three PCIE16 slots. Windows 7 Pro, 64 bit. Used the 4650 for two years. All fine. Supported two monitors. Purchased Samsung LED S27D360. Installed R7 240, upgraded AMD drivers/ATI CCC. Was using two monitors (ACER 2nd monitor) as extended desktop. HDMI on Samsung and DVI on ACER. All great. Decided to install 4650 as second card to power third monitor. Installed in second PCIE16 slot, used VGA output. Powered up. All went BAD! Windows booted in low resolution and desktop was mirrored on 1st and 2nd monitors, driven by R7. Windows screen resolution function did not see second monitor. 4650 did not power third monitor. ATI CCC reduced to only HydraGrid function, no other options. Device manager indicates Code 43 on R7. Removed 4650. Rebooted. Able to increase resolution to optimum but still same issues and now second monitor receives no signal. Completely lost on this and how to solve.