Good Afternoon, and thank you for posting on the Final Fantasy XI Technical Support Forums.

Based on the information provided, we have come to the conclusion that a complete reinstall of the game may be necessary. Please uninstall Final Fantasy XI from your computer. Make sure to delete any remaining FFXI files from your computer, including any potential files in your ‘Documents’ folder. Then reinstall the game from scratch. The PlayOnline Viewer can be downloaded here: http://www.playonline.com/ff11us/dow...stall_win.html

Makes sure to put all four files in an empty folder, then run the .exe file. The installer should take care of the rest. Any updates or expansions will be downloaded to your computer once logged into the appropriate account.