I downloaded the Kindle for Mac software yesterday and purchased one book. It is showing up in my Archive section with a comment "Download failed, Try again." I have tried multiple times to download the book, but I keep getting error messages saying the book cannot be downloaded, try again. I went through their troubleshooting guide (which is very minimal) and nothing fixed it. I emailed Kindle C/S and they said it must be my firewall or anti-virus. I turned off the firewall, still didn't work. I don't run anti-virus software on my Mac. I've tried to call Kindle C/S since those weren't the problem, but haven't been able to get through yet. I've tried it on three different wireless networks and one wired network - fails on all. My internet access is totally normal otherwise; everything else is working and downloadig just fine. I'm exasperated. Has anyone else had trouble with downloading something to Kindle for Mac? I'm beginning to think it's a problem with the title on their end. If anyone has suggestions, I'd love to hear them.