Lemons

[Phil Dykstra]

> The biggest problem we had was that our application ran about 6 times 
> slower on the GT than a 4D/70G when we first ported it over.

We had a similar surprise.  A display manager for our solid modeling
package ran at first about half as fast on the 4D/70GT as it did on
the 4D/60!  After some head scratching we realized the problem: on every
screen update we were also updating the status of the function key lights
on the keyboard.  The keyboard interface on the 70GT must be slower than
on the 60; apparently only 9600 baud.  After removing the keyboard update
the tide happily turned in favor of the 4D/70GT.

- Phil