An anonymous reader submits: "You should know that RoadRunner is quietly blocking the use of Kazaa in certain markets. Particularly in Texas, they have some sort of port scanner in place which scans for Kazaa activity and then disables use of that port, rendering the program completely useless. Grokster, iMesh, and all other FastTrack programs are similarly affected. Yet RoadRunner is not disclosing the practice in any way. Not only that, I'm troubled by the possibility of them arbitrarily choosing to block other programs in the future. If this becomes more widespread, they will have many angry (and former) customers." The poster provides these four links to forum postings with more information: one; two; three; four.