It is likely your forgot to input the Security Code printed at the bottom of the Registration form.

The Security Code is a sequence of letters and/or figures you should read and type in the small box placed just above the "Submit" button. This is a way to prevent automatic spamming registrations.

Please do this simple operation carefully. If you enter nothing or a wrong code the Registration process will be halted and you will be prompted to go back and try again.

If you have any other trouble in submitting the registration form the reason is likely due to the "cookies" management of your browser (for example, Internet Explorer or Mozilla Firefox).

In such a case we recommend you to follow these steps:

• enable the "cookies" management (read here how to ...)
• set your Privacy level to "medium" or "medium-high" in the menu Tools/Intert Options (Internet Explorer)
• reload the registration form page (possibly holding down the CTRL+F5 keys together)