I have not had a problem with this before, ever.  I am not able, now, to enter dynamics.  A week ago, I was able to on a particular file.  I had been working on a new file in the last week, and I tried to enter dynamics as I always had.  What came up appears to be what comes up with one is using the lyrics tool.  I am unable to double click on a note or measure and then add the dynamics.  I went back to the old file to see if the same things was happening, and it is.  So, I am now not able to enter dynamics on any file.  I have never had this problem and i have been using this version of Finale for about 6 months.