Hi, I am trying a create a little gui using ltk which has an open file button using get-open-file. It works fine besides the fact that I cannot select any file. I played around with the filetypes keyword but could not get it running and could not find anything in the net so far which helped me. I actually do not care about the filetype at all. I have installed ltk via quicklisp on OS X using sbcl. (defun test () (ltk:with-ltk () (let* ((datei (make-instance 'ltk:button :master nil :text "Datei" :command (lambda () (print (ltk:get-open-file :filetypes '(("All Files" "*")) :title "Open")))))) (ltk:wm-title ltk:*tk* "Test") (ltk:pack datei)))) I get a nice button, the open file dialog opens but all file in the current directory are gray and not selectable. What am I missing? If I choose :filetypes * it works but that’s very different from what I have expected. Thanks for any advice Martin