I've used BitComet since it came out and never had a problem with it, or at least not more than any of my friends with their uTorrents and Azures and whatnots. THen again, I was the only sod on earth that had no problems with Windows ME. That said, I'm not inclined to believe that the client is at fault… It's been working great until now.
I am downloading all the files. I don't usually download just parts because it's always finnicky, and since I want to UPLOAD to recover my ratio, it's best to have all the file.
I have to add to what I said on the OP, that yesterday I got a message that said that my account had been "reset". My days of grace (of wich I had only 4 left) rose to 22 again, and I could download normaly, for a while. Eventually the problem came back.