The model for Acer laptop is ATI mobility Radeon 5650. I am using Windows 8 Pro from MSDN. It was working fine until two days ago when Microsoft pushes an update. After the update, my video card stops working and I only see black screen after loading splash screen. I can go in Safe Mode. I tried to install driver from AMD website but it failed with error message "load detection driver failed". Anyone else have the same issue? Any idea how to solve this? I need to go in Win8 for my latest development.