OK I think I might know what is going on here. I think you are putting the formula in the "
Suppress Blank Section" in the section expert correct? If so:
1. Put it in the "Suppress(No drill Down)" formula box area. I should have made that clear on the first post and I assumed that was where you were putting it. Sorry about that.
2. Make sure the check box next to the Suppress(No Drill Down) is NOT checked. If it is checked it will suppress all of your detail records not just the empty ones based on the formula you just put in.
3. Take any formula out of the Suppress Blank section, you can still check the box but it should not have any effect because as you state "oh, there is something there, I cannot suppres it".
What we are doing is not suppresses a blank section but suppressing the whole section per row based on a condition. It will still show your other detail rows because they do not meet the condition we are puttiing in the formula. By putting the formula in the right place you can have 100 things in the section and still suppress it based on nearly any condition you want.
As an FYI to help you in the future when reading these posts, almost always people will share code to help but include fake values in the code because we do not know what your table or field names are (like the isnull(table.field) ). When reading the posts you have to insert your own data fields to make them applicable to your database and reports.
I really hope this one works for you