I have an internet connection of 128 KBPS from local cable provider. I use u torrent program to download. Sometimes I observe that all of sudden it stops downloading anything. Sometimes it stops downloading but continues uploading but sometimes it stops both. My Cable person told me its an unlimited connection. Can the ISP be checking how much I'm downloading and then stop me from downloading further? He told me its unlimited so he should not be keeping a tab on it. What could be the reason?