[GTRXTC3000]

I'm using a Mac Pro 3.2GHz Quad Core Intel Xeon with 12GB 1066 MHz DDR3 ram running Pro Tools 11.1.2 with a Digi 003 Control Surface. I use the S/PDIF output from an Apogee 44.4/48khz Rosetta A/D converter into the S/PDIF input on the Digi 003 but am not getting a signal into either the right or left S/PDIF input channel when attempting to record.

All other analog inputs work fine as inputs or recording. I previously used this same set up with a Power Mac G5 and the 003 with no problem. Only have the problem now with the newly upgraded system. I/O setup looks normal. Anyone have an answer or solution? What am I doing wrong? Is there a compatibility issue with PT11, the 003, and the Mac Pro? Help please..thanks.