Alright, fellas. Here’s the situation:
From what I’ve been seeing, almost everyone afflicted with problems are either running 32-bit systems, or have an Nvidia GTX and/or TI card. With me, having an Nvidia 550 TI, I can play the game for about thirty minutes, and then my system freezes with the dreaded audio loop.
This has been linked to a compatibility issue with the video card drivers and Guild Wars 2, and the good guys at A-net are trying to find a solution. No ETA though, so for now, most of us GTX/TI users are outta luck for the moment.
Hopefully A-net support finds the source of the problem soon. The storyline is getting juicy!