The shadowbox extension actually gives the option of using one of 4 different javascript libraries, so just try each one.
A user named Elaine Lee said that "there was a conflict when I had it set to 'jquery' but not when I had it set to 'EXT'. I also cleaned up some of the unnecessary javascript files being used."
We advise to all choose MooTools when possible for a few reasons:
- You will avoid Javascript incompatibility. MooTools is the Joomla! default Javascript Library.
- If you have too many Javascript files and libraries your site will take longer to load.
- Our extensions only use MooTools.