The NAGC loads up with no problem. The problem starts to show up when I try to log on and connect to the server. The Grand Chase would not load up successfully and would close 20 seconds after it was opened. There is a prompt on the screen but it is blank. I have tried to run and install it as an administrator, but still it is not working. It has been working without any issue since it was installed several years ago. It was only recently that the problem occurred and kept on prompting. Can someone help me with this problem?