An error message occurs when the InstallShield setup is about 50% loaded. It says that I should close all other applications, but no other applications are running. The InstallShield program then freezes and quits. I tried restarting my computer but the same thing happened every time. Any help would be greatly appreciated. Thanks. edit: This is the exact error message: "An error (-5006:0x80070017) has occurred while running the setup. Please make sure you have finished any previous setup and closed other applications. If the error still occurs, please contact your vendor: Firaxis Games"