The some of other Joomla! extensions use the JavaScript libraries as Core Design Scriptegrator plugins does. Of course, that can cause the different issues because of:

• doubble JavaScript files loading,
• different versions of the same scripts or
• other script incompatibility.

We can not guarantee the compatibility with other Joomla! extensions.

How to solve this issue?

1. * Solution: Search in "affected" extension source code and comment the line where the JS library is called (not as difficult as what it may seem).
2. * Solution 2: Find related JavaScript library in "affected" file structure and rename this file to something else. For example from jquery-1.2.6.js to jquery-1.2.6.js.backup.
3. Also you can contact extension's author and ask him.

* Don't worry, the Scriptegrator plugin loads JavaScript library you need across the whole website. Of course the second extension should be compatible with the newest version of the conflicted script.