My laptop has a default display resolution of 1600x900, previously, when I start the client in-full screen, the 800x600 stretches to fit my entire screen. Now, Starting the client in Full-screen just gives me 800x600 pixels being occupied by the client, and a surrounding edge of black. Windowed mode works the same. Any ideas how I can revert this? I've already tried running in compatibility mode, that does not affect it. My graphics driver is Intel 4 chipset v. 8.15.
The information in this thread may help you fix it: http://royals.ms/forum/threads/maplestory-doesnt-fit-into-my-screen.6650/#post-30555