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Continue to ChatQuery : How to change the workspace color window from RGB to CMYK mode in Illustrator CS5.1? I'm using Illustrator CS5.1 and started a new document in RGB mode. When I change the color mode to CMYK https://vmapp.org/query/4630/How-To-Change-The-Workspace-Color-Window-From-RGB-To-CMYK-Mode-In-Illustrator-CS5-1-I-M-Using-Illustrator-CS5-1-And-Started-A-New-Document-In-RGB-Mode-When-I-Change-The-Color-Mode-To-CMYK/