>What apparently can happen is, that such a >band doesn't intersect with any of the rects in the two given >regions. BTW this shouldn't happen at all, as the two for() loops inside OrRegionComplex() should make sure that the band contains at least one rectangle. That's why I added the ASSERT inside ROR in the first place. So I (we) need to find out what's wrong inside those for() loops. Stefano Ceccherini aka Jack Burton -------------------------------------------------------------- Non resistere alla tentazione di conoscere nuovi amori! Oltre 1.800.000 persone ti stanno aspettando su Incontri. Vivi le emozioni fino in fondo! http://www.supereva.com ---------------------------------------------------------------