I got both the Marvel and DC Comics apps. I quickly tried to download 3-4 free comics on each. This was 4 days ago and I have zero comics downloaded. Inside the apps, in "My Comics," each comic I tried to download has a little progress bar showing maybe 20% complete. What's the deal? I realize that downloading 8 comics at once is going to make it slow but holy moley, I've left it overnight several times now. Am I doing something wrong? What's the deal?