Firstly, FrostWire 5 no longer connects to the gnutella network. It is a torrent only program. We don't know what FW changes have been made that might cause that problem.

You might consider downgrading back to FW 4? http://www.gnutellaforums.com/frostw...a-network.html

As for files being corrupted during the transfer. Perhaps these files are transferring at the wrong time before they are fully downloaded. May also depend on whether your iTunes is set to copy to library or not. If not, there may be some problem with the FW playlist that shows in iTunes or an overall compatibility problem due to FW changes. ie: problem with the new FW 5 version. One answer might be deleting the old FW preferences folder. But that is if you stick with FW 5.