I've owned this scanner for YEARS and I cannot figure out where I screwed up. I'm just trying to listen to the groups I have programmed, not scanning through frequencies. I can't get it off scanning through frequencies. When I push the numbers on the scanner to turn on and off my groups, either nothing happens or it turns the "SO" numbers on and off above the groups. I have looked through all the manuals and cannot find a fix. Please help.