>I should have said that - yeah - I tried that :) I don't want to write the report in code. This will happen very seldom (says user) so I may tell them to cope with it and move on..

Sounds like the thing to do at this point. You say it happens very seldom, but is it consistent with any given set of report data, i.e. when it does it, does it always do it if you generate that same report more than once?