Ok! So suddenly my options for editting in Photoshop CS are no longer working. It wont let me duplicate layers (or do anything with layers, for that matter) and the filters wont work or anything. I've closed the program, restarted and it still wont work for me. I've closed the file, chosen other ones and those arent working either. Has anyone else had to deal with this problem? If so, how did you fix it?