I have come to save you all from this misery. Here is what you do, it's simple, just a few steps.
1. Have the game open. (It doesn't matter what screen you are at, fullscreen or not.)
2. Alt+Tab FIRST to your desktop. (If you hit ctrl+alt+del directly from the game it will crash.)
3. After the Ragnarok client is minimized, THEN hit Ctrl+Alt+Del, then cancel out of the that menu.
4. Maximize your Ragnarok Client again.
5. Thank Odin for restoring Midgard to it's former GLORY! (This will fix EVERYTHING.)
The End.
Edit~
After testing in various modes, I have found that in some cases when in fullscreen rebirth you need to hit ctrl+alt+del straight from the game as it is maximized. A good rule of thumb is~ if ctrl+alt+del while minimized doesnt fix it. then ctrl+alt+del while its maximized. (kick it softly, if it doesnt listen, kick it harder)
Edited by bdotalex, 06 April 2016 - 11:51 AM.