Transmission

I am sure this question has been asked by thousands of newbies, but I can't seem to find a clear explanation anywhere else, so I'm coming to you guys. Can someone explain to me why my client would not want to download from a peer who is willing to upload? Is it simply that I have reached the top end...

Bugger, indeed. I cannot download either new torrent files or prior files in the process of downloading. I can't remember, however, when I last updated my Transmission build. I can't seem to change the permissions to my external disk as suggested last April by Rebel. Get Info tells me that I can rea...