To use either disk just type BILL and press return. Again, use disk #1 to input your data and disk #2 to prepare your reports. Okay, so much for the disk(s) holding your MR. BILL programs. Now you must format a new disk to hold your data. This will be your data disk. Most people will put the data disk into drive B. Label the program disk(s) as "MR. BILL PROGRAM DISK (#1) --DRIVE A" and in our example, the data disk as "MR. BILL DATA DISK--DRIVE B". Note: your program disk does not have to go into drive A. You can put your programs on any disk. Also, your data disk does not have to go in drive B. You can choose any drive as your data disk drive.