New in Version 1.5:
- calculation Net Present Value (NPV) and
  Internal Rate of Return (IRR) on uneven
  cash flows.

New in Version 1.4:
- several options are now available for the
  handling of decimal places in the numbers
  displayed
- one can now change the sign of the number
  in the input window by pressing <S>
- the registration process has been changed:
  registered users will now receive a code
  to enter in an appropriate dialog window.