Another cause of very heavy traffic being blocked is other other Imesh user still trying to download files from you after you have shut down Imesh. When you are downloading with Imesh you are doing the same thing to other peaple. You never mentioned any port #s. Carefull about sicking firstname.lastname@example.org on some poor kid when he may not be doing anything your not doing. P2P with the whole world expect some traffic!!!