I've been getting the 318 error message for the past 2 months. After unplugging to reboot, the program guide only goes out a few hours. 24 hours later I still have no long term program info (beyond 3 hours). When looking at the menu under installation and system info it shows the guide set up as 3 hour view. This reboot error comes up once a week now. Someone here suggested that I need a new receiver.