As per the issue description mentioned above, page thumbnails are not visible in Acrobat Pro 9 on your Mac machine, is that correct?
Could you try resetting preferences for Acrobat using the steps given in this link: How to reset Preference settings in Acrobat.and check if that helps. Reboot the machine after resetting preferences and check. Also, let us know Mac version installed on the machine? To check the version: from the Apple menu in the corner of your screen, choose About This Mac.
Let us know if you need any help.
1 person found this helpful
This seemed to work... thanks... the file names were different but similar
in my Preference folder but when restarting Acrobat the files worked as
they had before... thanks again.
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