I am connecting from home and the only types of files I have tried so far are mp3, .sit, and .dmg. My ISP doesn't have anything that I know of that would prohibit p2p types of things. I have had successful downloads, it is just that sometimes they are incredibly slow. I can check with the ISP to see what the deal is, but I had been avoiding that cause of the chance that it could get me in to trouble. I will also try dowloading some pdf files to see if that has any difference.