Re: acroread no longer opens pdf portfolios

>>Is there a way to revert to the previous version?

>Yes, add oldstable (non-free) to your sources.list, remove installed
>packages and then install acroread with the version in the command
>line :

>apt-get install acroread=9.4.1-0.1



Thank you. That worked and now I can read the portfolio pdfs again.
I have pinned that version.
Is this a known bug? Is it Linux only?
Is there a way to know if new versions fix the problem without having to
install and revert again?

Brent