PC Reset when Running L2 Gracia Part 2 and Gracia Final

[JMD]

Today i faced this issue, when i am starting part 2 & final i see the small icon in the center and when it comes to go in the login screen my pc resets itself, this is not happening when using Interlude client or any other game. Searching in the internet i found some posts in other forums about that and they say it might be bacause of overheating but i dont believe that cause i can play normally any other game exept gracia 2 & final. Also i opened my case to see if the coolers are working and they do work.

Does anybody faced that before? Is there any possible solution?

SOVLED, SOLUTION= DONT USE NOD32 VERSION 4.