Hi, I recently had a issue with our M7CL Durring sound check before our last performance of the summer, 2 of the channels where picking up really bad static even after disconnecting the input cables. It also displayed a Checksum error durring boot up but continued to start normally. Since that evening it's started normally and all channels are static free. I was just hoping someone might have a possible explanation as to what may have caused this. The desk has some other issues such as glowing meter lamps a couple of selector and on buttons that don't work or operate other channels in there section, as well as a few fadders that move on there own. The desk a little old now and showing signs of its age and is worked hard so it might be time to look for a replacement but I'm not sure what with at the moment.