Okay,
1. double-clicked on "ptle692_26140.dmg"
2. clicked the Install Pro Tools Icon
3. Chose uninstall
4. choose Clean Uninstall
5. does it, then I get message "Uninstall was successful, but some files/folders could not be deleted because they are shared by other applications.
6. Clicke on PT CD icon
7. click uninstall icon
8. click uninstall pT
9. choose clean uninstall
10. get the same message about not all files being deleted.
11. went to home/Library/Preferences and deleted com.digidesign.COreAudioManager.plist
12. restarted computer
13. reinstalled OS X combo update that is recommended on your site.
14. restarted
15. Click on PT CD icon
16. Install PT and Digidesign Core Audio.
17. restart
18. install from "ptle692_26140.dmg" smae way.
19 restart
20. get same message
The application "Pro Tools LE 6.9.2" could not be launched because of a shared library error: "4<Pro Tools PPC dbg><Pro Tools PPC dbg><DAE><FreeFic>"