Thanks for additional info...I have launched messages to Koso North America and I have also posted on a Koso European forums site. I have considered that there is a problem with the unit, but until I have some better information to go on, I am not sure. I am hoping to start a dialog with Koso so that I can get to the bottom line on what could affect this behavior and then keep on troubleshooting.

Any additional thoughts/pointers/suggestions are greatly appreciated.

Steven