No because a; b; c .......... are other formulas evaluated on WhileprintingRecords ............ Anyway, I've gone past that.

The problem now is:
If I don't have any records appearing in the details setion - due to the suppression formula, I don't want the group header or footer appearing.

I have a formula in my footer that calcuates the number of records that appears in each group. TROUBLE is that the formula isn't calculated until after the header is printed so it won't suppress the header.