Seems your authorisation, probably as well as some other information like date/time time-zone, get lost during the "crash" - reinitializing the reader to factory-default on reboot. - This kind of actions are reported to happen at random.
To (re)authorise your reader do the same thing as you have done it the first time.
(Though I never did it by myself).
Procedure somehow includes usings Sonys Reader™ for PC /Mac Software, setting up (you probably will have already) a Sony-Account (using the same e-mail adress as use in ADE - if you are using ADE also) and connect the Reader via USB and select Data-Transfer-Mode.
Uppon connect there should be a PopUp-Window asking to authorise your Reader (again).
Last edited by Mark Nord; 09-19-2012 at 06:05 AM.