I have been noticing on my GF that the mark only goes away on enemies that hit your character.(i.e mark the boss, and the boss stays marked for me even though an archer crept up behind me and dealt damage) Not 100% certain, it just seems to be working that way for me at the moment. It is hard to tell when I take damage…
"Open Beta" is technically launch for PWE games. If I remember correctly they have a policy which keeps their games in open beta so that they can continue making countless tweaks, bug fixes, expansions, ect. without much of hassle. (i.e Perfect World International has been out for over 5 years now and it is still in open…