I think I have determined that it is a setting on my computer that is not allowing me to download books. I have had not problem from Nov-Feb but something ever since is blocking. I am running Win7, Firefox & Avast Antivirus. These have not changed since Nov. I have under firefox gone to options and for privacy allowed cookies for B&N site and it still doesn't work. When I am logged in and go to free books and hit download book the screen flashes and nothing happens; also when I try to click on the down arrow of select list the screen flashes and nothing happens. I spent the last 30 minutes with tech support and they told me to call my internet provider. I thought I would try here before I spend all afternoon on the phone. Thanks