I have owned a Radio Shack Pro-106 scanner since December. In December and January, I programmed it using programming software, which worked great. I entered in everything necessary to listen to the local ambulance service and other agencies, such as the frequency tables, system frequencies (tower sites), etc., and it worked fine up until last week. All of a sudden, I turned it on and could not hear anything. When someone would talk, the scanner would stop on the object, but I could not hear anything. The signal bar was full and the black T box was there. What do you think could be wrong? It's weird that I can't hear anything on any of the objects. It it possibly a statewide problem?