Il Mio Problema
It is the common problem with the 2007/2008 MacBook Pro graphic card. Mine is a 4.1 (French!) model 2.5ghz.
La Mia Riparazione
I have already "repaired" it once by baking the logic board. It worked... for a while! About 2 months ... But since I had a new MacBook Pro retina for a replacement, I put my old (and beloved . . .