Login failure goes to wrong site eg. user/login/lightbox2?destination=

Hallo alltogether,

I´m using Lightbox since a while and it works fine but since the last update I found the following bug. After a login failure lightbox2 goes to wrong site eg. "user/login/lightbox2?destination=" instead of "user/login". and it schows the Loginform without any style.

Is there any path and as we are talking about it is there any possibility to display the Drupal message in the Lightbox and reopen it fore new Login

Regards
Georg