Note: This procedure involves editing a registry value do not attempt this if you
are not familiar with working with your system registry, as a mistake can cause
serious problems with Windows. Start Regedit and use the "Registry/Export Registry
File" menu option to create a backup copy of your original registry. Use the following
steps to set the background textures past a 1024x1024 resolution. In Regedit, Go to
"HKEY_LOCAL_MACHINE", then select "Software". Select "PlayOnlineUS" and the "Square
Enix" folder, then the "FinalFantasyXI" tab. You should see two "strings", "003" and
"004". Double click to open them, and change the value for "003" to "800", then change
the value for "004" to "800". You will notice the values to the right after you
click "OK" will change to the corresponding resolution.