Was going to take the trouble to post computer info on this issue, but 15 pages of reports for last month and no fix....doubt my information will shed light on the problem if you have not found it by now. Sad to see this issues was on the second page of forums and not at the top since it really makes playing game hard and frustrating.
happens with all characters on different worlds. Never noticed any single activity that causes it, graphics/loading screen will just freeze and then out to desktop. Can play for several hours without it happening and other times happens after only 30 minutes of playing.
Do you notice it happens faster between crashes when you are switching characters a lot or switching between zones/areas a lot (such as doing chain warzones etc). Just curious.