Error when a and account in Zimbra Desktop

[sesaru]

Dear,

I am testing Zimbra for my company with the appliance. I have my email working, and I could test Zimbra Desktop with the admin account.

But when I try to setup Zimbra Desktop for any other user that I have created in the system, I get this error:
account.INVALID_ATTR_VALUE: zimbraPrefForwardIncludeOriginalText must be one of: includeAsAttachment,includeBody,includeBodyWithPre fix,includeBodyAndHeadersWithPrefix

I have tried both Zimbra Desktop 1.x and 2.0 Beta4. Any idea?

Thank you
César