Good afternoon;

After I've taken a course I like to copy all the objects within that DataBase to my own  database, rename each object to reflect my naming convention and see if I can reproduce the same results.  

Most of the time, this works fine but every once in a while odd things happen. The first indicator is usually an error message saying 'Variable not defined' then the object in question is a Form.

Are there cautions I should be observing when I rename and copy Forms or Reports?