In order to update the client, you will have to delete the file called VTABLE.DAT from the FFXI folder. The VTABLE.DAT file can be found in the FFXI folder (see pictures below for reference).
The file to be deleted will be the Vtable.dat
After deleting Vtable.dat, proceed to open pol and check your FFXI files.
Note: If “pol.exe” is opening xiloader (the black screen where you can log into SuperNova) instead of PlayOnline, then use “pol_org.exe” in the PlayOnlineViewer folder.
****Select the files to be checked/updated from the drop down menu.****
Click on check files, and wait for the process to complete.
Once the file check is complete, it should at least find 1 file with a problem (which is the one that we just deleted). Proceed to click on File Repair, then click Yes to confirm.
After the update is complete, click finish/done and exit Pol Viewer.
Remember to replace the 69.dat file for the Chocobo Circuit NPC names and any other .dat modifications made prior to updating. These files can be downloaded from the link on the sidebar.