Or the GPU went bad.
Or he has a corrupt OS.
Or he is missing a driver.
Or his PC is too high tech and refused to be on anything but max.
It's not always age that forgets you over.
i play on an 8-year old computer with 1gb of ram, intel graphics, and a dual-core, pentium D 2.8GHz processor
(or a 5-year old laptop with a 2.1 ghz i5, 4gb ram, and still intel graphics)
its (both are) a dinosaur.