We use Livecycle Server 11.0 to enable saving of forms data in our forms. We are receiveing complaints from people using Reader XI that if they reopen a form they are working on, they get the following message. "This document enabled extended features in Adobe Reader. The document has been changed since it was created and use of extended features is no loner available".
Is this a known bug with Redaer XI. We have a lot of Licecycle licences and cannot guarantee that users will not use Reader XI.
is the problem specific to Reader 11 ? not experienced on reader 10 ?
you could compare the settings of a working Reader 10.x with Reader 11.x where it throws the exception.
Also ensure that while creating form in designer > File > Form properties> Default PDF render format is set as: Dynamic XML Form.