Can you go into your home folder. Then into the folders: "Library" -> "Preferences". Then rename the file "com.inklen.MixEmergency.plist" to "com.inklen.MixEmergency.plist OLD", and restart MixEmergency to see if the Control window appears (it should display by default, but if it doesn't, you may need to push the Control window button or try the Window menu). If this does fix the problem, can you then e-mail me the "com.inklen.MixEmergency.plist OLD" file. Let me know how you get on.