Weird (new) color change with Canon 9500 Mark II printer

I was shooting and printing with this combination, and my prints almost exactly matched what I saw on the screen:

- Canon 1D4 body
- Pixma Pro 9500 Mark II printer
- Ilford Gold Fibre Silk photo paper
- Ilford ICC profile
- Photoshop CS5
- Calibrated NEC monitor

And recently changed the following:

- Canon 1D X body
- Photoshop CS5 to CS6

My printed images now have a green cast to them. I was seeing this even before upgrading from CS5 to CS6. So the only real change is the camera body, but that shouldn't make any difference if I open up a JPEG and print it. I typically use the Canon EasyPhoto print plugin for printing, and I can compensate somewhat for the color cast, but I'd rather not do this and have an explanation for it. Any ideas?

So, have you viewed the pics in the Photoshop View Proof function, and if so does the image have the green cast or does it appear "normal"?

And, have you printed one of your "older" shots since you've had this problem, and don't get the green cast?

If you are close to a good print provider you might take a photo in to have it printed and see if you get better results...

What happens if you print straight from PS?
Do old files print okay?
Sure your screen calibration is up to date?

I could imagine going from PSCS5 to PSCS6 might break something in the color management chain, but not going from a 1D4 to a 1Dx…

Sorry about the delay in getting back here. The print proofs look normal. In one case, a picture that I printed that had a green cast was also printed by a customer from the same JPEG on my website (smugmug - Bay Photo lab), and I didn't see the customer print but was told it looked great (I realize they might not view it the same way I would). I haven't tried printing an older picture yet, but that's a good idea. I bet it will also have the green cast and point to a printer issue rather than the change in camera bodies. I'll report back after I get a chance to try that. Another thing I haven't tried and will try tonight (because I have to) is print something on Canon paper with a Canon profile and see if that has the same cast.