Yes, you can check. Go to the "Settings" menu and select "About" (that's for the PRS-600, but I think it's the same on the 505). In the "Adobe" section of the text, if your Reader is authorised, it will say "This device is authorized for Adobe DRM protected content".
Note that ADE won't ask you to authorise the Reader unless the PC itself has been authorised first.
Last edited by HarryT; 10-01-2009 at 11:29 AM.
Reason: Typo
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