windows 8.1 issues w/ Audible audiobooks

Hi there,

I just upgraded from Win 8 to Win 8.1 and have now issues with (already authorized) audible audiobooks in my iTunes library.

When I try to listen to them, I am first asked to (re) authorize them by entering my audible password, then I get the following error message: "Could not authorize this computer because iTunes was not installed correctly. Please reinstall iTunes." (I doubt these message reflect the correct reason for this issue as everything else I have in my iTunes library works fine.)

Then I get a second error message:"Could not authorize this computer because an error occured (1007).

I already re-installed iTunes also I have de-authorized and re-authorized my audible account in iTunes.

Does anyne has idea(s) on why this is happening to my Audible audiobooks ?

Thanks JC.

P.S: I already contacted Audible tech support and they had no idea why this was happening.