Help! Drop-down menus in back end don't work anymore

[meringa]

Hello ! Need help about this problem, I work with 1.5.15 Joomla version: my host provider had a migration of my site, changing password. I continue to update my site, but the drop-down menu doesn't work anymore, so I can't access to these options in the menu (modules, components, menus, etc.). I tried to solve this problem by copying some directories of the installation as administrator, components, inlcudes, language, libraries, modules, plugins and templates, and these files changelog.php, credits.php, license.php. Using the same process, I upgrade to the 1.5.26 without success.
Now I have to add a new menu but I can't access to the modules environment without using the drop-down menu.

I tried different browsers (Firefox, Chrome, etc.), different OS (Windows 7 and XP), different workstations: the malfunction is the same!

Can you help me, please?

[Franck974]

Hello,

I have exactly the same problem. Can anybody help solve this? Even an upgrade seems not be possible without access to Extensions.
I have version 1.5.22
May be by knowning the URL of the Extensions menu, in order to upgrade to version 2.5?
Or is there another method to upgrade "externally" instead of through an extension like jUpgrade?

Thank you
Franck

[dpacadmin]

Try uploading the media folder again from the same Joomla version you are using. From another Joomla install copy the path to the menu items you need and paste into the site's url to get to the menu items for now. Try enable or disable of Mootools.

[makedifferent]

Hi,
As a lot of people, I had this glitch where the dropdown stopped working after my Joomla 3.3.4 update. When clicking on the dropdown list element, nothing appeared. So I've searched and tested all the situations described in the following topics:

viewtopic.php?f=708&p=3157840
viewtopic.php?f=709&t=837957
viewtopic.php?t=249201
viewtopic.php?f=708&t=857405
viewtopic.php?f=433&t=784493

All without success, so here is the working solution I found.
In fact, the dropdown area was not displaying at the right place.

Open your FTP path to:
www/administrator/templates/isis/css/template.css

And just add these two lines at the end of the file:

div.chzn-drop{
position:absolute!important;
left:0px!important;
}

save your file and reload