Similar problem here, i think so not related with the game... i have my motherboard monitor poping up frecuently, it push me out of the game, game not crash, i was moved to desktop only and the problem is the 3V, down under 2.9V.
In my case almost, i think so the game push the video card to work too much and the 3V droops, and the @##$ Power Source, a Thermaltake 480W is not enought to supply the 3V constantly... :hmm:
I click on the task bar the SH4 task and back to game....
