Thank you very much for your help. I have deleted these files and it did solve half of the problem – Now it only shows the infos when you click on a video and these infos disappear when you close it.
I tried this option but this is not what I’m looking for. It’s unbelievable that you can’t navigate between items in the portfolio…
But what’s even worst is that you can’t set a department as homepage (I opened a topic about that too), so this mean that you can’t have a portfolio displayed on the homepage unless you have only one?