Hi. I have just changed from a Nvidia gtx 580 to a gigabyte r9 290 with koolance waterblock. Post is starting then it is displaying scrambled images followed by black screen followed by windows login page. Everything seems to be working in windows except the gigabyte [email protected] bios utility is saying warning! no card found here! Card is displaying in device manager. I have uninstalled all the Nvidia drivers and software from the uninstall a program utility in control panel. It seems to me as if the bios is still trying to display to the gtx 580 maybe? I cannot get into setup as I only have the display port on the graphics card. MOBO is asus maximus extreme IV, CPU is i72600K. I have flashed most recent motherboard update. I have installed latest catalyst and driver. Is there something I am missing please?