When there is an update, i usually wait till it is done, then close gw, then start another shortcut that runs gw using the -image switch. After that my gw.dat should be fully updated and i can play again.
Since apx a week i still do the same, but the loginscreen stays completly black. I can see the hud, i can even login, select a char, but then my screen becomes black again (only seeing the hud, chats, etc). The problems start when i use that 2nd shortcut (the one with the -image switch); before that the screen looks normal.
I also found a solution: when i minimize my window for some time (10 seconds?) and then maximize it, then everything is often normal again (sometimes i have to try this a 2nd time). But it seems i have to wait forever when i dont minimize (this way i never go my screen back). Even closing gw and restarting it doesnt help.
Another solution seems to be to restart my computer. After that everything seems to work normal again...
After "fixing" this screenproblem it doesnt come back... till next update

I have two pc's... this problem only happens on one of them (my main pc).
I really dont have a clue what's going on... afaik i didnt change anything on my pc (last update was apx 1-2 months ago, when i needed a new cooler on my graphics card).
Hopefully someone here knows a better solution than minimizing window or restarting pc. TIA