Thank you for quick answer.
I Use only Firefox regularly upgraded.

I tried now ( 6 hours after ) and everithing gone right , payement done.

Hi
I want buy S2 license but when I try to pay with Paypal it give me error :

"You have requested an outdated version of PayPal. This error often results from the use of bookmarks."

This happens when I click on : " TO THE FINAL PAYMENT PAGE"
How I can do?

Thank you