Good afternoon and thank you for posting on the Final Fantasy XIV Technical Support Forums.

There are a few things that I can suggest, I'll try to avoid what you've mentioned in this and the previous thread:

1) Try a clean reinstall of your graphics card drivers.

2) Try a clean boot. Simply open the task manager and select the 'Start up' tab. Disable everything here and restart the PC. This will make sure that no background processes are interfering with the game.

3) Since you've already reinstalled the game and even moved the install folder, try removing the locally saved data folder (located My Documents > My Games > Final Fantasy XIV). Be sure to make a backup of this just in case it doesn't resolve the issue.

4) Update Windows. Make sure to install any non-mandatory updates as these may not be installed automatically.

5) Make sure that your anti-virus has the proper exceptions for both the install folder and the locally-saved data folder.

We hope we can be of assistance in helping you enjoy the exciting world of Final Fantasy XIV!