Salut, this is a new function in LW 4.0: tiger tree hashing system. It divides a file in parts that have each an individual hash (or identity by mathematical measure computation). If after you downloaded a part it has a different hash than the one uploaders gave to you, it means there is corruption in that part and LW will then cut that part to download it again. This system ensures that you share a non corrupted file on Gnutella either in the partial file sharing in LW and at the end of the dl. It might be frustrating, but *it is* progress.
Bonne chance
