My brother in law asked me to fix his Sheevaplug. No component damage visible, but it was clear there was something wrong with the PSU. Found a 2.2A/5V adapter in a box, and opened its case. A bit too big to fit in the Sheeva, but the dremel managed to make it a snug fit.
Soldered the wires from the Sheeva to the new PSU….et voila…the Sheeva boots up again.