Hey D--
Sent you an email.
It can be a variety of problems--not jut monitor calibration.
1. incorrect icc profile for paper selected
2. incorrect "color settings" in photoshop
3. incorrect media type selected in the printer box.
I use adobe gamma on my mac. But I always have a GRAY colored desktop screen. Specifically I use gray medium.
I also have a spyder, but it's unpredictable. So I've learned the correct settings via trial and error mostly.
And I update Adobe Gamma on every month or so, since settings can easily change.
Hope that helps and sorry you're having frustration with the 2400. It's a beautiful printer once you work out the kinks.
