Well Bob, does this signify retirement for your 500?
We have now found the reason for the downfall of the PRS500, it was not reliabily issues with hardware or software, it is simply the same reason for which most of us acquired it in the first place. Gadget lust for the newest, the closest to one's mobile reading needs. What worries for nothing, it was doomed all the way! Will the 505 survive? Not likely!
I hope you find a nice home for that 500!