I've had incidences where I have clicked on a closed message in my Inbox (one that has been previously read) and then clicked Reply to discover that the Reply window does not necessarily open with the original message contents. It seems to be somewhat inconsistent though. I find that opening the message first and then clicking Reply or Forward results in the original message contents being included and that seems to work more consistently.
I have the same problem.
Forwarding an email that I have previously sent or received, truncates the message to just the headers
I have tried opening the message and then forwarding but no luck.
This has only just started happening (last 2 months).
I have the preferences set to include all of the message
Help!