I'm desperately hoping someone can help me with this problem. I had Final Cut Studio installed on my computer around December and everything has worked fine up until last week when I wanted to change speed on something and the change speed box came up black. I found a way to work around this but then I realized when I tried to use compressor the same problem happened. I tried uninstalling it and installing again but the problem is still there.
Their other app to delete pref files is a must also (you can back up your prefs also but this should only be done way everything is working well, not when you are having issues. http://www.digitalrebellion.com/pref_man.htm