FWIW. I see this occasionally, where I am downloading from the market and it just appears to 'hang'. If I 'reboot' the PocketBook IQ 701 it seems to clear up and either restarts/starts the download in the background when the Pocketbook comes back up. Note: The 'hang' is the download not appearing to make any progression - the Pocketbook itself seems to be otherwise, working just fine, when this happens.
-Winston