Good morning Debbie -

Sounds like trouble in paradise when a seller thinks that inspector caused surge that killed her computer.  If it were me I would just simple call the home inspector explain and take it from there.  Just take the bull by the horns and get the problem behind you my friend.

An old computer that is unprotected should be unplugged when not in use.

Ditto what John said - call the Inspector, hand him the hot potato.

I personally don't think it is the fault of the inspector.  If she is saavy enough to use a computer, she should have a reliable surge protector attached.  AND, should have turned it off when the inspector came, knowing that he may be testing the circuits.