---How to install Calcsys
-Use the graphlink software to insall the calcsys.73k file
onto your calculator.  You'll need at least version 2.0 of
the software, so upgrade if you have an older version.

--If you are having trouble, make sure of the following:
-Your TI-73 is on the homescreen.
-You can communicate correctly with your TI-73 using
the regular graphlink software (if you can't this is a
problem you have to take up with TI tech support)
-No other graphlink or application install
programs are currently running.
-You have at least 1 free app space
-Your batteries are not low.
-Your graphlink is connected to your calculator
-You are using the latest version of the graphlink software