Just once, you need to copy some of
IBM DOS 2.0, 2.1, 3.0 or 3.1 onto 
your P.C. PLANETARIUM software.


Several times you will be asked to

   "Insert diskette for drive A:"
       
Each time, put your P.C. PLANETARIUM
diskette in the diskette drive.


When you are asked,
   
   "Insert diskette for drive B:"

place your IBM DOS diskette in the 
diskette drive.

Now, be sure you have inserted the
diskette for drive A:
