I've bought myself a MSI GTX670 OC'd a couple of months ago and just recently started having this issue... it's not overheating and downgrading my drivers had no effect either.

It happened occasionaly before, but today it did many, many times in a row in Ul'dah during JP prime time (mass of people fighting the new mobs).

Any more ideas? Or is it just a random common issue with the 1.0 client I shouldn't worry about?

Thank you.