can't get acrobat 9 pro to load as part of CS5 suite for mac

i had reinstall full cs5 package, , had no issues reinstalling indesign, photoshop , illustrator original disks, when insert aa9 pro disk, *appears* download, , i'm able open it, eject disk, program grays out. icon stays in doc, nothing happens when click on -- when check applications folder , click on icon there, error msg says: "the alias “adobe acrobat 9 pro” can’t opened because original item can’t found."

 

i can't figure out i'm doing wrong. (not sure has it, other cs5 disk in suite package -- indesign, photoshop , illustrator -- prompted me serial number , product code, when inserted disk aa9 pro, didn't happen.) suggestions? btw: posted question in forum, suggested may cs-specific issue....)

are sure you're using correct 2nd disk?  possible have acrobat pro disk that's not part of cs5 collection?

 

if yes , no, cs5 collection have?

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