I am having issues achieving color accuracy from files as viewed on an iMac 27" monitor and printed on an Epson 7900. I am running OS 10.7.5, and calibrate with a Spyder Pro 4 device. I am printing on Hahnemuhle papers using the ICC profiles provided by Hahnemuhle. I have tried printing using the Epson driver, ImagePrint RIP, and ColorBurst Overdrive RIP, all with varying results. When printing with the Epson driver, I allow Photoshop to control the printer, choose the appropriate profile and opt for Relative Colorimetric. Using either of the RIPs, I allow the software "printer" to control the output, also opting for Relative Colorimetric. (I have experimented with Perceptual, but this does not improve the output.) In the past I had superior results from an Apple cinema display, calibrated with an iOne device, and printing to an Epson 4000 using the same papers with appropriate profiles. As a check, to see if the Spyder device is defective, I have also tried calibrating using the Apple system display preferences, but do not see a radical difference. Any suggestions? Thanks for your help. Neil Steinberg