Critical Error

[gauge021]

Ok when i use to play it only happened once or twice a month and it was only in game, mostly in QH. now this happens sometimes when loading up game and it is doing this 5+ times a night. here is what happens: I start to lag, then my screen freezes and goes out of full screen mode and a message pops up that says critical error: Application ran out of memory when trying to load (ex) 1,100,110 mb of memory. can someone plz help me. thank you