I just bought it today and downloaded, ran it for a few minutes. I later had to do a hard reboot (manual shutoff and restart without proper shutdown) because of the waiting curser. I assumed because it was running hot and I need a RAM upgrade. Anyway I turned my mac back on and tried to open Logos 4 but it crashes within seconds. A window shows up indicating "Signing in..." and then the application closes. Can anyone help? I have since attempted several proper restarts, deleting the program and reinstalling, and no luck.