Black Screen Win 8 to 8.1 upgrade

Question: I just upgraded my Windows 8 computer to 8.1, and now when I log into Mabinogi I have a black screen, like the ones shown here:


How do I fix this?


Answer: Roll back your video driver.
More information found here: http://mabinogi.nexon.net/Community/forums#%2Fshowthread.php%3F1096656-Black-Screen-when-loged-into-Mabi%26highlight%3Dblack%2Bscreen%26nxid%3D10