dug 
As I mentioned before, a nice UPS man took my iBook away to be mended under Apple’s iBook Logic Board Repair Extension Programme
It came back all shiny and new less than a week later :-)
It blew up again a week after that :-(
We’ve just been through the bipolar UPS man circuit again (the circuit, not the UPS man) and are currently hoping if it does go wrong again, it’ll happen under the 90 day repair warrantee.
Fingers all very crossed…