Still getting Blacked on a daily basis

https://puu.sh/y7eP1/e110ce2b08.png

Almost every day, sometimes within minutes of opening the client, parts of the display disappear and turn black or simply fail to appear

they sometimes reload but immediately break again due to unclear events but as soon as it begins nothing will fix it until a full client reload

I've had this bug since the client launched and it hasn't been fixed yet

I'm using a (very legal) version of Windows 7 without many of the updates if that helps