This is a weird one. I have been playing close to every day since beta and never had this problem, but haven't played since the last update. Playing today, every single time I change zone my game apparently windows, as I see a GW2 labeled window in my upper left screen for a second before I see my full page web browser, then when the zone loads I'm back in GW2. It's not a serious problem, but.... discombobulating. Any ideas on what changed?