SEF saving user details problem

[nutis]

Dear all,

I am facing the following issue:

As logged in user, I want to edit the address via menu item "Edit Address". ( index.php?option=com_virtuemart&view=user&layout=editaddress&Itemid=497 )

Once the SEF is turned off, I just fill in the details, click on "Save" button and everything is OK, data is saved and confirmation message appears. However, once I turn on the SEF and then fill all the data and click on "Save" button, I get another unwanted window, please see attached. (I am redirected to the link "/upravit-uzivatelsky-profil/edit_address"). How to get rid of this? Of course I want the SEF to be turned on, but dont want this window to appear, respectively I do not want to be redirected to the "edit_address" option.

Thank you a lot!

nutis

edit: Joomla 2.5 + VM 2.0.20b

[attachment cleanup by admin]