I photographed an antique portrait with lots of dark browns and reds, (nothing out of gamut) and am trying to reproduce it on Epson Exhibition Canvas Matte using an Epson 9900 printer. When I use Imageprint 8, (installed on Mac running 10.6.

with their profile, green blotches end up in the dark brown areas. If I use Photoshop CS6 with the Epson profile, the preview looks fine but the print comes out much too dark. Given that it's the same file, regardless of print method, I don't believe it's due to the "why are my prints so dark" syndrome. What I'd like to try is the Epson profile with Imageprint but IP 8 doesn't like the profile and refuses to print with it selected. Another alternative is to have a profile made that Imageprint will accept, (I may have read that IP doesn't accept Epson media profiles but not positive about it). Anyone have other ideas?
Thanks!