While switching from my DVD analog input, to DVD digital input (coax-4) from the Input config menu, I got an error message that read 0181 0080. This is the second time this has occurred and it completely froze all operation. I had to do a hard restart from the rear and all my presets were erased. I searched the SMR Forum and discovered this has happened to others, but know one seemed to know exactly what the problem was. I already sent an e-mail to Lex CS about two weeks ago, but haven't heard back from them, yet. It seems to occur when I go from an analog to a digital input...the last time was when I switched components from VCR to DVD. Any ideas what is causing this...and is it anything to worry about? It seems to be a major annoyance more than anything else. Thanks.