The answers to the following questions might help in looking into the issue further:
1. Did you use Acrobat 9.4.1 for encrypting the portfolio? If yes can you please specify the exact encryption method used?
2. Did you use the same machine for encrypting and opening the portfolio?
3. Did you try opening the portfolio in Reader 9.4.1 and did it ask for a password there?
4. Which platform ( Win XP/ Vista/ Win7) are you on?
I used Acrobat 9.4.1 for encrypting the portfolio with 256-AES encryption on the same machine that was updated to Reader X. With Reader 9.4.1 the certificate encryption worked normally - didn't require a password. My computer is running Win XP Home edition.
If you have gotten a security certificate created w/Arcobat 9 to work in Reader X, I'd like to know the details.
Since my post I've been told that Acrobat 9 and Reader X aren't mutually compatible. I removed Reader X and reloaded Reader 9.4.1 and the certificate works normally again. I assumed, I believe incorrectly, that Reader X would work with Acrobat 9! If you have had a different experience, please post details.
Announcement: Would you like to help us improve Adobe Reader?
We have had a few bug reports related to Adobe Reader X protected mode coming in from you in this forum. We have addressed a large number of them in our upcoming Reader update and we would like to hear your feedback.
To that extent, we would like to invite you to the Adobe Reader Prerelease program and try out the latest build. To participate, please fill in the form available at
https://www.adobe.com/cfusion/mmform/index.cfm?name=reader_prerelease_ interest and indicate Adobe Reader as the product of your interest.
We look forward to your active participation, feedback and help towards making Reader a better product.
Thanks and regards,
Adobe Prerelease Team