Cookie: register again when lost.

*Before versions 4.x of GuppY, the best way was to save the useful cookies using a
free software called: Cookies Manager 
You can download it from:
http://pmdevigne.home.dyndns.org/

* As of versions 4.x of GuppY,  at the time of the registration,  a
password is asked by default (a line of numbers to be remembered)
and this password makes it possible to be re-registered under the same
user name on one or more machines or in the event of cookies being lost.
This generated passcode can be replaced by a personal password that is easier to remember.