I have a system of conventional freqs with 9 groups in it, it is area counties and when I get to that county I enable it and disable the one I'm leaving. I accidentally got to the point of no groups active and I got the nothing to scan message, even though the system is still on. Trouble is when I try to enable a group it will not do it, none of the 9 groups will come back to allow the scanner to scan. Ideas?