Customization features depend on cookies to save your information. Cookies
are stored on your own computer. If the file or files that stores your cookies
are either cleared, deleted or corrupted, your settings will be lost.
Browser-specific assistance
What to do when settings work initially, but are later lost
Sometimes - the settings work fine when they have been set, but stop working
during the next visit, or after days or many weeks use.
If the settings are lost after the browser is closed, they are probably only saved as so-called session or temporary cookies. Please look at the browser-specific assistance above.