all of a sudden, browsing folders stopped working in one of the "insert image"-windows.

It works fine in the gallery, but not in the advanced window.

 

The problem just poped up and now it exist on all my local sites and some of my released sites aswell, so I guess it is an environment issue.

Have I missed any setting in some file?

 

Is it this line?

onclick="parent.SetUpload_FolderPath('/pics/newspics')