Hi, I have LR 2.1, CS2 and CS4 running on the same computer (Mac OS 10.5.5) I have a Eizo CG 211 monitor calibrated with "Display2" and ColorEyes software. The colors between LR 2.1 and PS CS2 look exactly the same but the same image file opened in PS CS4 display moderatley different hues. LR is automatically set to ProPhoto RGB and I have both CS2 and CS4 set EXACTLY the same in the Color Settings ... menu (ProPhoto RGB). Soft proofing is not active. Any ideas why CS2 and CS4 won't display the same file identically ? Thanks for any suggestions.