I have the same problem under Squeeze with nm-applet (GNOME-frontend).
I use the maximum WPA key length (64 characters, which works under other distributions) but the dialog does not accept it ("connect" button disabled). If I shorten the key by three characters (to 61 characters), the button is enabled again (but the key is of course wrong then). The key consists of ASCII characters only (upper and lower case, digits). -- To UNSUBSCRIBE, email to debian-bugs-dist-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org