I have the same probs. as everyone, unable to map upnp and nat-pmp ports. and I have an aditional observation(I do not know if this is because of the above mentionet problem) almost no seeders connect to torrents that I am downloading, eg: I have a a couple of torrents with 30 000 and above seeds, and ut 1.7 connects to only 1or2 of them, and 1.6 connects to 120 seeders... (I was also downloading last episode of naruto (over 500 000 seeds) and 1.7 was downloading all the way with something like 2-5 kbps, and when I put the same torrent in 1.6 it was going my max down. speed) I am running windows vista... edit: and yeah, I forgot to mention, I often have to restart utorrent because down speed falls down to 0(program just looses all of connections to peers and seeds), and when program is restarted, it connects to few seedesrs again...