Incremental updates are disallowed

Since I upgraded to Domino/Notes 7.0 whenever I try to add or remova a follow up flag in my mail I get the message: Notes error: Incremental updates are disallowed.

This happens only if I work on the server, not locally. I have replaced the design with all possible templates but nothings seems to happen. Does anyone have any clue what this message means?

Subject: Incremental updates are disallowed

I think it means that a trial version of Domino 7 was installed rather than a version from Passport.

Subject: RE: Incremental updates are disallowed

I have used the original CDs from Passport. I have never installed a trial version of Domino!Any ways to bypass this?

Subject: RE: Incremental updates are disallowed

Did you try a reinstall of the client in question?