This is a report by Calibula, she can't report it.
When you go to xat.com/login, the login button doesn't appear, so she can't do login.
She tried with Opera, Chrome and Internet explorer browsers but the same issue stills.
Personally, I tried with all browsers and it works correctly, but not with Internet Explorer.
Is it a bug?
* Step 2: Go to xat.com/login