No clue, but I just snapped one up at the Windhurst AH on Unicorn for 30k. This is the first time it's been seen for sale at AH anywhere on the server.
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Final Fantasy XI 12-14-11 Update wrote:
Adjust the resolution of menus. The main screen resolution for "FINAL FANTASY XI" is dependent on the "Overlay Graphics Resolution" setting. If the Overlay Graphics Resolution is set higher than the Menu Resolution, menus will be automatically resized.