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