After turning fullscreen mode "ON" from title screen options menu, game crashes.

What I expected to happen was: The game to enter fullscreen mode when I toggled the option "ON" from the title screen options menu.

What actually happened was: The client crashed to the launcher multiple times upon toggling fullscreen mode "ON".

Steps to Reproduce:
1. Execute Launcher from taskbar shortcut
2. Launch Client in windowed mode from Launcher
3. Once at title screen, select Options>Video Settings>Fullscreen "ON"
4. Client crash