Can't see a signal above channel 8 - SOLVED!!

I'm running Sonar Studio X2. My interface is an Allen and Heath Zed R16.
If I plug a microphone into any channel 1-8, I see a signal registering on the accompanying channel in Sonar and I'm able to record on that channel.
If I plug the same mic into any channel above 8, (with all the same settings on my Zed as on the lower channels - and all the same settings on the channels in Sonar that allowed me to record on 1-8) I've got nothing. Yes, I've got all appropriate gains, levels, trimmers, faders pulled up.
 
Under Preferences>Audio>Devices, I have every box checked for all channels on the Zed, including the ADAT channels that I'm not utilizing.
 
Any idea why I can't see a signal on anything above channel 8?
 
Thanks~
 

Might this have anything to do with the fact that I originally had Sonar LE (which is limited to 8 tracks) installed on my computer for a brief time? After a couple of weeks of checking it out I purchased and downloaded Studio X2. I 'uninstalled' Sonar LE prior to the download of X2.
Might there be some setting left over from LE that I'd need to reset/change?
 
I too, thought of the WDM settings, but I thought that they were solely for the purpose of getting outboard gear (such as the CD player in my computer) to play through the Zed and my studio monitors (which works fine, BTW).
I'm at work right now, but I looked at the WDM mapping last night and if I'm recalling correctly, I do have the front left and right mapped to the Zed Main L/R, but there are only 6 additional inputs available and they are mapped to channels 3-8. (I hope I'm describing this correctly. If I knew how to take and post a screen shot, I'd do that if you think it might help.
 
Thanks.  

So what of my questions about the WDM? Do I need to provide more information? What else might I check, given the circumstances (particularly since I had LE installed at one time)?

Hi CJ - I'd be glad to provide any information if it might help solve this most aggravating problem! I had planned to do some recording this weekend, but it may have to wait if I don't get this cleared up soon.
 
Each of the 16 channel strips on my mixer are identical. There are no extra buttons or pots that would differentiate the first 8 (1-8) channel strips from the second 8 (9-16). I even checked the back of the mixer to see if there may be something there in the form of a switch, but there was nothing that would seperate the two groups of 8.
 

Here's the latest: I think I have a problem with my Zed and not Sonar. I just got home from work and decided as a troubleshooting excercise to see if I plugged a mic into channel 11 on the Zed, then set the Input of channel 1 in Sonar to 'Zed Left 11/12', would I get my signal on channel 1 in Sonar? I got nothing, but continued experimenting.
 
When I plugged my mic into channel 13 on the Zed and did the same experiment trying to route it to channel 1 in Sonar, all of a sudden I had a signal.
 
Then I checked to see if I had a signal on channel 13 in Sonar.
I continued, and I found that in actuality, I am able to get signal through the Zed into Sonar on my upper 4 channel strips, and Sonar responds as it should.
 
So - my Zed seems to work fine for channels 1-8 and 13-16. It won't work for me if I'm plugged into channels 9-12.
Now I'm wondering if there is something electronically connecting the channel strips in groups of 4?: My first two groups of 4 work (Ch. 1-8), the next 4 don't work (9-12), and the last group of 4 work (13-16).
 
There is a humongous thread on Gearslutz with the Allen and Heath Zed R16 as its subject. The A&H rep has responded there before, so I'm hopeful he'll see my post over there and respond.
 
Thanks for the help. I was pretty darned sure that I had the routing in Sonar as it should be, but it's upsetting that my Zed might be screwed up.
 
 

Its either what Fasterbikeboy said about the driver mode using WDM as far as mapping goes or your mixer/interface is defective
 
Cj

Check the ZED Dice Control Panel settings. Each of the channels are mono so if you have it set in stereo mode then it pairs the inputs like this: 
Stereo 1 = 1L/2R
Stereo 2 = 3L/4R
Stereo 3 = 5L/6R
and so on. 

You did check 9-12 through headphones on the ZED, right. So its just not sending 9-12 to Sonar? 
 

WHEW!! Solved this one and it was the Zed, not a setting in Sonar.
I took the back cover off of the board and had a look around. I could immediately see that the 2 sets of 8 channels were grouped together via circuit boards, and further, the 2 sets of 4 within the group of 8 each had a connector. I was looking at the back side of a circuit board, but I could see that the connector common to channels 9-12 appeared to not be seated in its mate on the circuit board. I touched it lightly and it came right out of its socket!
I carefully plugged the connector back in and got things up and running - everything now works as it should.
Thanks for giving this problem some thought and providing me with some ideas to troubleshoot with.