I've seen a couple discussions of Sony PRS-600's not showing in older versions of Digital Editions (like here anymore; I'm sure it did for previous versions of ADE.
), and solutions to this problem using Sony's own software for authenticating. I'm using Adobe Digital Editions 2.0.67275 on a Mac, but even though I've installed Sony's Reader for Mac and succesfully authorized my device, my PRS-600 still doesn't show up in Adobe Digital Editions. If ADE is the one option you have for reading DRM-protected e-books, it looks like I'm dead out of luck here. Also, the PRS-600 isn't even listed↧