Red Line through Icon

I did a quick search and found nothing on this right off. This morning upon boot up (after auto update) version .439 was up on the screen and the system tray Icon had a red line through it. I re-booted and the red line went away but the program menu still comes up on the desktop. I ran the diagnostics which came up okay. I thought I remember someone have this happen before on this forum but like I said my search came up empty. Comodo appears to be functioning okay but was curious what caused this.