After downloading an upgrade, as suggested by the upgrade prompt on the computer, the only program, Photoshop CS5.1 refuses to print anything to my Epson Stylus Photo RX680 printer. I spent all day troubleshooting this problem, spoke to and troubleshooted with the support group from Adobe for 6 hours, and reinstalled the complete Web Premium Suite, and print drivers, still the problem exists. All other programs as Illustrator, Word Office, and everything else prints fine from my MAC Pro, EXCEPT Photoshop CS5.1. I am now frustrated, and can't figure out what else to do. I need help.