Problem with 002 main outs as well as head phone outs?

[wiseal1]

I've had my my 002 for a long time now. Had upgraded recently to 7.4
running on mac g5 single processor 4 gigs of ram. Sending this to yamaha o2r v2 via lightpipe. I have recorded new sessions since up grading and had no problems but ...

Started a new session yesterday and client stated I can only hear out of one side of the head phones the left side. Checked all the obvious things and nothing was different than from any other sessions. Put head phones on myself and connected them to the front of the digi 002 headphone out and only heard out of the left side. Checked to see if I was monitoring in mono, that was not the case. Infact the mono the mute didn't seem to be working either. I then did a test recording. This was a hip hop session so I imported audio to the 2 track and was just recording vocals. I realized that I was only hearing the music and vocals on left side. I panned every thing to right nothing on that side. I rebooted the computer and shut down every thing and went through the process, but this time I opened a previously recorded project. Same situation at playback on the o2r I noticed the same problem. Put the headphones back on and the same thing.

I am really perplexed. It seems to me 002 is broken some how...? Anyone experience this?