Guild Wars 2

I’ve been playing GW2 for 1-2 weeks now, and sometimes very randomly my game would black screen for maybe 5-10 seconds then come back, but now with much reduced framerates (20 or so. Game becomes very choppy). It goes away when I restart the game, which makes me think GW2 is making my drivers crash. I have a GTX 670 with latest drivers (310.90) and a i5 3570k. I’ve followed all the tips on the stickies, such as turning AA-mode to application controlled and the such. Anyone got any ideas as to whats happening?

Also, I am overclocking, but it is very meager. +10 on the core and +550 on memory with a MSI GTX 670 PE/OC

Try underclocking and/or removing the overclock to see if it works better.
See (Part 5.1 for tools)