Windows 7 forums is the largest help and support community, providing friendly help and advice for microsoft windows 7 computers such as dell, hp, acer, asus or a custom build.. Bad video card drivers! minecraft was unable to start because it failed to find an accelerated opengl mode. this can usually be fixed by updating the video card drivers.. Bad video card drivers! minecraft was unable to start because it failed to find an accelerated opengl mode. this can usually be fixed by updating the video card drivers..