I've been playing EU for a while now with no problems (On XP btw) but all of a sudden it started to blink at me. Every couple of seconds the screen would flash black for about a millisecond, just enough for it to be noticeable, and then go back to normal. It's bloody annoying and I wonder if anybody knows what's going on or how to fix it. I've already tried reinstaling the game and restarting my comp to no avail.