My installed component on my Joomla website will not let me add new entries. The component works fine in the sandbox but does not work when installed on my Joomla site. The add button is there but does not call up the entry form

Using Joomla 2.5.14

Other tasks works ?

Javascript problem. maybe a conflict with something else.
Did you tried on fresh install of Joomla ?

- Have a look in javascript console.
- Try to load your component with(just an idea to see if when loaded alone it works)

EDIT : Front or back ?
Do you have other things on your page such as modules ? using javascript ?
I think it is due to a third extension on your page.
Does the problem occurs on every list views ?