user registration with virtuemart

[robobby]

Hi,
I use virtuemart registration form to allow the user to register. The problem is one: when user receives and click on the activation link is redirected to index.php.

I think the problem is because of virtuemart user to stay logged in and when user click activation does not recognize. I tried to make a record and log out and click the activation link and all finziona!

I have read some posts where I suggest to change the code? But is it true? How can I do?

I use
Joomla 2.5.8
Virtuemar 2.0.14
Php 5.3

Regards