I am running Photoshop Elements 12 and Premier Element2 12 and have been for 2 years with no issues. I just now deactivated PE and PRE versions 9 and uninstalled them. Now, my Photoshop Elements 12 organizer no longer recognizes the MTS video files I've downloaded from my Sony camcorder. The thumbnails are gray and when I click on the file, it tells me I am missing the necessary compressor/decompressor files. However, if I open those same files in Premier Elements 12, they open and run flawlessly. Since everything was working just fine prior to uninstalling PE 9, I can only assume that that uninstall also removed codecs that PE 12 needs. How do I get these files back so that organizer will view and open those files?