Frequent Black Screens when logging in and out.

Jeezye

Since last update I frequently bump into the problem of having black screens when logging in and out of characters. The screen becomes black without any screen saving picture and just a mouse to move. The game stops loading and I cannot switch to desktop nor close the game via the task bar. the only thing I can do is go to the windows tab overview, create a new desktop, switch to this desktop, create task manager and kill the exe manually (which is idle at that state).

really frustrating and annoying, pls fix asap