I’ve found the error using firebug. Seems to be a “TypeError: c.curCSS is not a function”. Updated the jquery.js file on the ftp and it works! Hopefully nothing else will shut down..
Thanks for the response!
Thanks for the answer!
I gave it a go, found the file and comment out the line which loads the mentioned file. It worked as the re-order option disappeared in wordpress.
Next I freshly installed the post-types-order plugin and activated it (no fatal error anymore). The re-order option appears again at the portfolios and slides but unfortunately I am still not able to re-order the items by click and drag.. nothing moves.
Do you perhaps know any solution to this? Or is it template related?
Thanks again.