Very minor graphics glitch

I was playing a monk and in the cathedral. When I clicked on the scribe's podium thing to get Lachdanan's Scroll Part 2, I briefly saw graphics glithces across my screen in rows. The rows varied in height and they were at different locations up and down the screen. It was very brief and it did not affect gameplay whatsoever. This was the first problem of any kind I have encountered in the beta (other than the login issues) and the game looks beautiful in fact.

I use 2 GeForce GTX 580's in SLI. The rest of my PC is pretty boss and the game runs great on my PC.