I have made an additional observation. If I manually turn off the NRS, the unit will correctly not power back on sending non NRS IR signals as noted above. However, if the unit is powered off using the NRS remote, then non NRS remote signals immediately will power the NRS back on. Does this make sense?? A "hard," manual turn off then prevents the problem from occuring. I'm not sure this helps in fixing the problem though. Any more thoughts would be appreciated.