A Case of Burnt K10D RTF (Built-in Flash)

A new K10D user complained about his K10D refused to work with RTF popped up after he had fired a few strobes of AF assistance flashes:-http://forums.dpreview.com/forums/readflat.asp?forum=1036&message=20981073&changemode=1Actually, his K10D RTF was found burnt and he was upset.On the other hand, it has never been heard about reports of burnt RTFs with previous Pentax *ist D series DSLRs before,