Crashing Constantly

I had this issue a few weeks ago frequently, updated my drivers, haven't crashed in about 2 weeks whereas before it was daily, maybe twice. Well, today I played for a number of hours perfectly fine, then I crashed. A little concerning but maybe a one-off. Twenty minutes later, it happens again. I log back in quickly, within seconds it happens again. It's the kind where you get the "send report to Anet?" popup, and you can circumvent it briefly by tabbing back into the game. I finish teq like this, restart again. 2 minutes later, it full on crashes, I don't even get the message. Now i'm upset and I'm just gonna do something else today, but what happened? Is there a problem ATM I didn't know of?