protools 10-suddenly no output frm spdif

hello friends,

i often use spdif connected compressor with 003, for vocal recording.

from yesterday, the spdif output is not working in protools session.

my recording settings are:

1 Mono AUX track

Input: Mic 1
Output: spdif left

1 Mono Audio track

Input: spdif Left
Output: 1-2 analog out


now, the mic signal going to spdif input, but its not coming to audio track which rec enable


i reset i/o several times, but no result… (please check the attached pic)

what could be wrong..??

please help

Attached Thumbnails