The other morning I found that my new wireless Ceiva picture frame (read this for background) was turned off, instead of showing a fresh batch of photos as it's configured to do.
I unplugged it, and it sprung to life showing a splash screen, a brief flicker of the Ceiva light on the front, then quickly shut down again. Try again; same result. Oh crap.
Long story short, I resolved the problem by disconnecting the wireless adapter and then turning on the frame. The frame started up and began showing the photos it had downloaded the previous day. Then I reconnected the Wi-Fi dongle and held the buttons to force the frame to retrieve new images.
Problem fixed, at lest for now.