Silly question but... I have CS6 and installed InDesign and Photoshop and Acrobat. Now I want to add Illustrator. Running "setup" it's not clear if I should check those 3 AND Illustrator or JUST Illustrator. If I only check Illustrator will it uninstall the others? If I check all 4 will it spend a bunch of time reinstalling the three that are already installed? Maybe overwritting settings?