Today, April 8 at 10:48 st while fighting the boss in the Shimmersand event at loc 6339,7614, I was having problems with my computer freezing up complete with the machine gun-like sound while in Mystic Archer. Twice I froze up and had to alt-tab out to end task both times when in MA. 3rd time I switched specs into pyro and no longer had an issue.