The colorbox script that comes with the theme is not compatible anymore with the jQuery script in the Zenphoto package.
You will have to update your colorbox.
http://www.jacklmoore.com/colorbox/
thank's for answer.
Now it works...
Note:
//Note : i don't have to activate an extension in the admin.
The old colorbox-js checkbox is ever there but not active, and it works fine.
Glad you got it to work!
Actually you only need the last change.
The standard colorbox plugin/extension is not needed by the theme and should indeed be disabled.
Besides that, any change in the core files would have to be applied again after each update and is therefore not recommended.
done that,
downloaded new version,
Changed old "jquery.colorbox-min.js" by new one in "themes/bootstrap/js/"
and diapo is now working well,
but the colorbox on single image stopped working !!
how do i do ?