Created subfolders in Media folder with different permissions.

Edit Asset -> Insert a WebGUI Collateral Image -> Try to create subfolder (but wrong permissions) -> Permission denied message is presented in the window but no possibility to go back (You have to Press Cancel and then Insert a WebGUI Collateral Image again.

See the following link for reference:

http://www.plainblack.com/bugs/tracker/media-folder/7#qj4gaCQYeaVT0Kix7mfVYQ 

It would be nice to have a back button or anything similar.