How to get "_view=slideshow.Slideshow&g2_" back in my slideshow url

Do not why but we lost a part in the middle of our slide show URL:
_view=slideshow.Slideshow&g2_

To link a slideshow external it's needed to add "view=slideshow.Slideshow"in the URL.

By opening the slide show in my Gallery the url is shown as:
http://www.mysite.com/main.php?g2_itemId=92325

And to open the slideshow in an external site its needed to link as follow::
http://www.mysite.com/main.php?g2_view=slideshow.Slideshow&g2_itemId=92325

In the past the full URL was shown in the Gallary slide show and that was very useful to use as external link on other websites.

Who can help me which setting to change to get the correct URL to copy into the external site?

Gallery version = 2.3.2 core 1.3.0.2
API = Core 7.54, Module 3.9, Theme 2.6, Embed 1.5
PHP version = 5.3.13 cgi-fcgi
Web server = Apache/2
Database = mysqli 5.5.24, lock.system=database
Toolkits = Thumbnail, Getid3, LinkItemToolkit, Exif, Gd
= partial/900, partial/900
= Linux
= matrix
gettext = activated