Migration Assistant on Mountain Lion does not let me deselect anything
I have mounted a clone of my previous Lion installation. I launched Migration Assistant on Mountain Lion. The drive was found successfully. The problem is that when I get to choose what I want to restore, everything is selected and can't be deselected. The checkboxes appear grayed.
What can I do?
I mostly want back my Mail.app items, my iPhoto library, my network settings (wifi passwords, locations, etc) and maybe Final Cut pro (because it takes long to get it installed + get the updates)
Any other files can be just trasfered by copy/paste.
MacBook Pro, OS X Mountain Lion