MS POS-Zebra Register "Device Removed" message displays at Start u

A printer called Zebra TLP2824 no longer used by MS POS still pops up with the following message at POS startup:

Devices Removed: Printer: Zebra TLP2824. Use the Register Properties dialog box to select the devices that you want to use with MS POS.

Any thoughts on how to remove? It does not appear on the Register Propoerties. We tried creating a new register an no devices appear. We appear to be stuck with register 1.

Thanks in advance.