I use ADE several times a year in concert with Overdrive to sideload books onto my e-reader. Had to rebuild my laptop last fall, and since then, I've been having trouble. I solved the problem where ADE didn't recognize my Nook. Most recently, it won't open. I've uninstalled and reinstalled, but when I click on the icon, nothing happens. Even the installation didn't seem to go as I remember. It seems like the installer installed, but I never got a setup wizard or got asked to authenticate my account. Is this a known issue/conflict? What else can I try?